Answers
4b = 28
b = 7
Answer:
Hope this helps
Step-by-step explanation:
Related Questions
can someone help me out please. its due soon and i dont have alot of time
Answers
Answer:
heyy there sorry i wish i could help i think its the first one!!!
Step-by-step explanation:
The shoes cost $200 with a sales tax of
7.5%, How much is the total Costs?
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answer this question plz
Answers
since they both have a zero on them you can take it off and it will be a correct fraction
I need Explanations for these 2 questions!!
Please so urgent!!!!!
Answers
122. Hundredths because he went out two decimal places
George and mindy are playing with a ball that has a diameter of 38 centimeters. What is the volume of the ball?
Answers
Answer:
28734.6cm^3
Step-by-step explanation:
Given data
diameter of ball = 38cm
radius = 38/2 = 19cm
The volume of a spher= 4/3πr^3
substitute
V= 4/3*3.142*19^3
V=4/3*3.142*6859
V=4/3*21550.978
V=86203.912/3
V= 28734.6cm^3
Hence the volume of the ball is 28734.6cm^3
Factor completely.
7x5 – 21x4 + 14x3 =
=
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[tex]7x^5-21x^4+14x\\ \\ 7x^3(x^2-3x+2)\\ \\ 7x^3(x-1)(x-2)[/tex]
Please help! Will mark brainliest
Answers
Answer:
surface area=602.88 in^2+
Step-by-step explanation:
top & bottom:
6^2 x Pi x2=36 x 3.14x2=226.08 in^2
vertical side:
circumference X height
2(6)(Pi)x10=2(6)(3.14)(10)=376.8 in^2
376.8+226.08=602.88 in^2
surface area=602.88 in^2
Beyonce is solving a system of equations: 2x – 3y = -2
4x + y = 24
She decides to use the elimination method to find the solution. She multiplies the second equation by 3 and adds it to the first equation to find 14x = 70, showing her that x = 5. Beyonce finds that y = 4.
Step 3: 4x + y = 24
4(5) + y = 24
20 + y = 24
-20 -20
y = 4
Step 1: 3(4x + y = 24) → 12x + 3y = 72
Step 2: 2x – 3y = -2
Solution: (5, 4)
+ 12x + 3y = 72
14x = 70
→ x = 5
Thinking about this process, Beyonce says out loud, “There are lots of ways I could go about solving this problem. I could do the method above or I could multiply the first equation by -2 and add the second.
Step 3: 4x + y = 24
4x + 4 = 24
-4 -4
4x = 20
x = 5
Step 1: -2(2x – 3y = -2) → -4x + 6y = 4
Solution: (5, 4)
Step 2: -4x + 6y = 4
+ 4x + y = 24
7y= 28
→ y = 4
“I seem to find that there is only one solution to the two equations, but I wonder if I will get the same solution if I use a different method?”
Explain how you know that a system od equations has an infinite numbe of solutions.
Answers
4x + y = 24 -------> (2)
multiply equation number (1) by -2
-4x + 6y = +4
remove the x value from both equation (1) and (2) because its the same number and different sign
6y + y = 4 + 24
7y = 28
divide both by 7
y = 4
now putting y=4 in two equations
2x - 3y = -2
2x-3(4) = -2
2x-12 = -2
2x = -2 + 12
2x = 10
x = 5
or
4x + y = 24
4x + 4 = 24
4x = 24-4
4x = 20
x = 5
so its (5,4)
-8(y + 5) = -8y - 40 TRUE or FALSE
Answers
Answer: true because that’s what you get when you use the distributive property
Step-by-step explanation:
if i 100 oz of water to drink, and i drink 23% of it, how much water do i have left
Answers
Answer:
you have 77oz left
Step-by-step explanation:
23% of 100 is 23
subtract 23 from 100
the answer is 77.
A pound of scrap aluminum sells for $0.72. How much aluminum do you need
to collect to earn $100?
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Answer:
about 139 lbs of scrap aluminum :)
Subtract. Express your answer in simplest form.
8 1/4 - 5 2/3
Answers
HELLPPPPPP!!!!!
Jane needs a short-term loan to buy a new washing machine. She needs to borrow $1500 at 20% compounded
annually and plans to have it paid off in 1 year. Jane writes the formula 1500(1.2) and finds out that this loan will
cost her $1800
Which equation shows how Jane can rewrite the formula to find the annual percentage rate that would cost her the
same amount if it compounded semi-annually?
O A ~ 1500(1.2)
O A = 1500(1.2)2
O A 1500(1.095)2
O A = 1500(1.095)*'
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Answer: A=1500 (1.095)1/2t
please help me with it
Answers
Answer:
50
Step-by-step explanation:
bfa and afe will add up to equal 180 because they are supplementary
20x+2x+70=180
22x+70=180
22x=110
x=5
then you plug in 5 to 2x+70 to get 80
cfe and afe are also complementary so they will add up to equal 180 so angle cfe equals 100
cfd and cfe are the same angles so 100/2=50.
the arc length is the same as the angles so arc length dc is 50
26,062, 26,064, __
2,898, 322, 324, 36
What is the missing number in the pattern above?
Answers
Write an
equation of the line passing through the points (4,13) and (-1,- 12).
Answers
Answer:
Step-by-step explanation:
(-12 - 13)/(-1 - 4)= -25/-5 = 5
y - 13 = 5(x - 4)
y - 13 = 5x - 20
y = 5x - 7
Find the volume of the cone. Round to the nearest tenths
Answers
Answer:
[tex]vol. \: of \: cone = \frac{1}{2} \pi {r}^{2} h \\ = \frac{1}{2} \times \frac{22}{7} \times 8 \times 8 \times 9 \\ = \frac{11 \times 64 \times 9}{7} \\ = \frac{6336}{7} = 905.142[/tex]
Graph the function y=4/3x+3
Answers
Answer:
Basically, you will first graph the 3 or (0,3) on the graph. Then you go 4 units up and 3 units to the right.
Hope this helps, thank you !!
Can somebody who has done word problems plz help give the correct equations for each one :DD thanks!
WILL MARK BRAINLIEST WHOEVER ANSEERS THEM FIRST !!!!!!:D
Answers
Answer:
18. x + 7 = 21
19. x - 55 km = 1000 km
19) 55 > x = 1000
hopefully this helps :) have a nice day/night and good luck in your class!!
A rectangular room is 15 feet long and 10 feet wide. A scale drawing of the room has a width of 5 inches. What is the length of the room in the drawing??
A. 10.0 inches
B. 5 inches
C. 7.5 inches
D. 30.5 inches
Answers
You can write the dimensions of the room as 10:15
and the dimensions of the drawing as
5: (unknown).
Divide the original dimensions by 2 to get the unknown value.
10: 15 ÷ 2 = 5: 7.5
So, when the width is 5in, the length is 7.5in.
4. Jim and Kirk are playing a card game where they trade chips. At the beginning of the game, Jim has four times as many chips as Kirk does. After Kirk wins the game, Jim gives Kirk 18 of his chips, at which point they now have the same number of chips. How many did Kirk have to begin with?
(a) If j represents the original number of chips Jim had and k represents the original number of chips that Kirk had, then write an equation that models the amount of chips they originally had. Explain your equation.
(b) The equation j k − = + 18 18models the scenario after Kirk wins the game. Explain why.
(c) Determine how many chips both Kirk and Jim started with.
Answers
Answer:
(a) [tex]j = 4k[/tex]
(b) [tex]4k - 18 = 18 + k[/tex]
(c) Jim initially had 48; Kirk initially had 12
Step-by-step explanation:
Given
[tex]j = Jim[/tex]
[tex]k=Krik[/tex]
Solving (a): An equation for the amount they originally had.
From the question, we understand that j is 4 times as many as k.
Mathematically, this is:
[tex]j = 4 * k[/tex]
[tex]j = 4k[/tex]
Solving (b): Equation after Kirk wins
Initially Kirk had k.
To get the new expression, we add 18 to k.
This gives: 18 + k
In the same vein, Jim's number of chirps will reduce by 18.
Initially, Jim had j chirps (or 4k chirps)
To get the new expression, we subtract 18 from j.
This gives: j - 18
So, the equation is:
[tex]j - 18 = 18 +k[/tex]
Solving (c): Number of chirps they started with.
In (b), we have:
[tex]j - 18 = 18 +k[/tex]
Substitute 4k for j
[tex]4k - 18 = 18 + k[/tex]
Collect Like Terms
[tex]4k - k = 18 + 18[/tex]
[tex]3k = 36[/tex]
Divide both sides by 3
[tex]k =12[/tex]
Substitute 12 for k in [tex]j = 4k[/tex]
[tex]j = 4 * 12[/tex]
[tex]j = 48[/tex]
I need help please!!!! RIGHT NOW!!!
Answers
A. Solve the following linear inequalities.
1. x + 7 <1
2. x + 3.2 < 6.4
3. 3x < 12
4. x/2.5 >5
5. 4a 23.6
6. 1.6 b< 8
7. Z + 4.2 < 2.1
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Answer:
1. x < −6
2. x < 3.2
3. x < 4
4. x>12.5
5. ? there is no "<, >" sign
6. b<5
7. z<−2.1
pls give brainliest
Step-by-step explanation:
see photos for explanation
Simplify the expression using the distributive property 3(2x+5) =___
Answers
Step-by-step explanation:
[tex] \text{3(2x + 5)}[/tex]
Distribute 3 through the parentheses :
⇢[tex] \tt{3 \times 2x + 3 \times 5}[/tex]
⇢[tex] \tt{6x + 15}[/tex]
[tex] \blue{ \boxed{ \boxed{ \tt{Our \: final \: answer : \boxed{ \tt{6x + 15}}}}}}[/tex]
Hope I helped ! ♡
Have a wonderful day / night ! ツ
▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁
Answer:
[tex]\huge\boxed{\bold{6x+15}}[/tex]
Step-by-step explanation:
Hi there!
The Distributive Property states that
[tex]\bold{a(b+c)=ab+ac}[/tex]
All we should do is "distribute" a.
Now, let's solve the given problem.
[tex]\bold{3(2x+5)}[/tex]
[tex]\bold{6x+15}[/tex]
Hope this helps!
#HaveAnAwesomeDay
~Just a teenage girl willing to help
[tex]\bold{Besties4Ever}[/tex]
HALP! I don't understand this! I need an explanation right away! Thank you for your help!
Answers
Answer:
1/2
Step-by-step explanation:
there are 13 cards in each type so
heart or diamond would mean either one so 13 +13=26
26/52
1/2
TOTAL NUMBER OF HEART CARDS= 13
TOTAL NUMBER OF DIAMOND CARDS= 13
PROBABILITY OF AN EVENT
= NUMBER OF FAVOURABLE OUTCOMES
TOTAL NUMBER OF POSSIBLE OUTCOMES
Probability of getting a heart card♥=13/52 =1/4
Probability of getting a DIAMOND card♦= 13/52 =1/4
Probability of getting a heart and a diamond card =26/52 =1/2
I hope you got it!!!...right!!
hi can someone pls help me find the slope?!!
Answers
Answer:
The slope is [tex]-\frac{2}{4}[/tex] or you can do -1/2
Step-by-step explanation:
the slope is m = -2 / 4 = -1 / 2 = -0.5
5. What is the value of x?
Answers
Answer:
5[tex]\sqrt{3}[/tex]
Step-by-step explanation:
in a 30-60-90 triangle the ratio of sides, respectively, is 1 : [tex]\sqrt{3}[/tex] : 2
you can set up a proportion like this to solve for 'x':
[tex]\sqrt{3}[/tex] / 1 = 15 / x
cross-multiply:
[tex]\sqrt{3}[/tex]x = 15
x = 15/[tex]\sqrt{3}[/tex]
rationalize the denominator by multiply top and bottom by [tex]\sqrt{3}[/tex]
you get 15[tex]\sqrt{3}[/tex] ÷ 3 which is 5[tex]\sqrt{3}[/tex]
PLEASE HELP ME SOMEONE
Answers
Answer: A
Step-by-step explanation:
me need help on math
Answers
Answer:
B. 75
Step-by-step explanation:
To find x (the number of students who went to the zoo) you would isolate the variable. 6x + 25 = $475 -> 6x = $450 -> x = 75. (Brainliest would be appreciated and if you have any questions then type them in the comments.)
You eat 1/4 box of cereal at breakfast. How long will 2 7/8 boxes last?
Answers
Answer:
11.5 days
Step-by-step explanation:
Step-by-step explanation:
step 1. 2-7/8/(1/4) = (23/8)/(1/4) = 23/2 = 11-1/2.
step 2. it doesnt say how often you eat 1/4 boxes. let's assume it is daily.
step 3. answer: 11-1/2 days.