B is the answer just took the test
What is -5 5/8 + 3 1/2?
Answer:
-17/8
Step-by-step explanation:
find the absolute value
Answer:
3
Step-by-step explanation:
What is the scale factor for this dilation?
The lengths of the ſides of a triangle are 2x,x+4, and 13 inches. If the perimeter of the
Triangle is 35 inches, what is the value of x?
Please show work if possible! Will mark brainliest!
Answer:
Perimeter = A + B + C
Perimeter = 35
A = 2x
B = x+4
C = 13
35 = A + B + C
Step-by-step explanation:
35=2X+X+4+13
SUBTRACT 17 FROM EACH SIDE
18+3X
DIVIDE EACH SIDE BY THREE
X=6
THEREFORE,THE SIDES ARE 12, 10 AND 13
12+10+13=35
Solve 5x − 2(2x − 1) = 6
Answer: x = 8
Step-by-step explanation:
The answer begins with the distributive property, multiplying positive 2 times the elements in parenthesis.
5x - (2)(2x - 1) = 6
5x - 4x - 2 = 6
1x = 6 + 2
x = 8
Lisa finds a treasure chest full of 1000 jewels: 600 emeralds, 300 sapphires, and 100 rubies. She stuffs her pockets full of jewels completely at random, but they can only hold 100 jewels. What is the probability that all 100 jewels she took were sapphires?
Given:
Total number of jewels = 1000
Emeralds = 600
Sapphires = 300
Rubies = 100 rubies
100 jewels she took randomly.
To find:
The probability that all 100 jewels she took were sapphires.
Solution:
Number of selected jewels = 100
Total number of jewels = 1000
We have to select 100 out of 1000.
So, the total number of outcomes [tex]=^{1000}C_{100}[/tex]
Number of sapphires = 300
We have to select 100 out of 300 sapphires .
So, the favorable outcomes [tex]=^{300}C_{100}[/tex]
Now,
[tex]\text{Required probability}=\dfrac{\text{Favorable outcomes}}{\text{Total outcomes}}[/tex]
[tex]\text{Required probability}=\dfrac{^{300}C_{100}}{^{1000}C_{100}}[/tex]
Therefore, the required probability is [tex]\dfrac{^{300}C_{100}}{^{1000}C_{100}}[/tex].
Bob and his fish friends have been noticing these weird silver things hanging out the in the water lately. They have also noticed that some of their friends seem to be disappearing. Bob wonders if the two are related. Their school of fish started with 450 fish in it but now they only have 360 fish in their school. By what percentage was the population of their school of fish reduced?
Answer:
450
Step-by-step explanation:
subtract
Answer:
I am pretty sure 25%
Step-by-step explanation:
I had this question before
please help asap!!
Which of the following choices will evaluate -(x^2), when x = -3?
a. 9
b. -9
c. -6
d. None of these choices are correct.
Answer:
d
Step-by-step explanation:
What is the y-intercept?
What’s the slop.? What is the equation of the line?
y intercept= -4
slope=1
equation= y=x-4
Answer:
Y intercept= -4
Slope= 1
Step-by-step explanation:
What is the range of the function y=sq root x+5
Answer:
[0,inf)
Step-by-step explanation:
inf means infinity logo
NEED HELP ASAP!!!!!!!!
A linear function has a slope of 11/3 and crosses the y-axis at -9. What is the equation of the line?
Answer:
B.
Step-by-step explanation:
A Plane flies with a velocity of 52 m/s south in a 12 m/s wind blowing in the same direction. Find the
combined direction and velocity of the plane.
Answer:
64 m/s and south directionStep-by-step explanation:
Wind direction is sameWind speed = 12 m/sPlane velocity = 52 m/sCombined direction is
same = southCombined velocity
52 + 12 = 64 m/sHELLLPPPP ASAP. Explain how to find the product of 3/8 x 7/9. Use complete sentences in your answer.
Answer:
7/24
Step-by-step explanation:
you times the numerators together and times the denominators together then you simplify
A ratio is a comparison of ____ numbers or measurements
Answer:
the answer is: "a ratio is a comparison of two numbers or measurements
Helppp!!! This has to be done by 8!!! And it’s 7:45!!
Answer:
The constant of porportionality is k = 12.5; the equation that describes the relationship is y = 12.5x.
Step-by-step explanation:
When you divide the miles by the hours, it's always 12.5, meaning that k must be 12.5.
If x is the hours and k is 12.5, the equation that describes the relationship is y = 12.5x.
PETS Last month, Hao's dog ate 40 cans
of dog food in 31 days. How many cans
should Hao buy to feed his dog for the
next 6 days?
Answer:
8 cans
Step-by-step explanation:
Answer:
8 cans
Hope I helped
Please answer. The best answer will be marked brainliest.
take out the square root of 543. 192
and secondly take out the cube root of same number which is given up
I need to Know this Please.
Answer:
The last one is the answer
A store is marking down the price of a television 25 percent from the original price of $250. Which expression can be used to find the marked down price?
Answer:
250 × 0.25
Step-by-step explanation:
x/250 × 25/100
cross multiply
100x = 250 × 25
100x = 6250
divide by 100
x = 62.5
62.5 is how much the price got marked down
original price - marked down amount = new discounted price
250 - 62.5 = 187.5
$187.50 is now the actual price
As for which expression can be used to find the marked down price, none are listed in this problem and I'm assuming its a multiple choice question considering the wording of "which"
how i solved it is through cross multiplication but another way is by using the expression:
250 × 0.25
this is because 25% equals 0.25
I need help with 29 and 30
Answer:
29 is 1.50 i think
Step-by-step explanation:
Answer:
Area is 0.15. Measure ratio is 1:2.
Step-by-step explanation:
Area is length x width.
60 degree angle is half of 120 degree angle.
Country A has a population of 514,482 and Country B has a population of 523,407. How would you compare these populations
Kalie pays $9.24 for 11 pounds of flour. What is the price per pound of flour?
Answer:
$0.84, 84 cents per pound.
Step-by-step explanation:
I hope that this helps. Have a good day!!
9.24 ÷ 11 = 0.84
The positive square root of 60 is not an integer. Which whole number does the value 60 lie closest to?
Answer: 6 and 7
Step-by-step explanation:
What is the equation of this line?
Answer:
2x - y = 0
Hope this helps
Answer:
y=2x
Step-by-step explanation:
when x =1,2,3 y=2,4,6 respectively so
y is the double of x
y=2x
hope it helps
steps for 540 + 6x = 810
Answer:
x = 45
Step-by-step explanation:
[tex]540 + 6x = 810[/tex]
Step 1 : Collect like terms
[tex]6x = 810 - 540[/tex]
Step 2 : Simplify
[tex]6x = 270[/tex]
Divide both sides of the equation by 6
[tex] \frac{6x}{6} = \frac{270}{6} [/tex]
Step 4 : Simplify
[tex]x = 45[/tex]
I hope it helps :)
Answer:
Well...X=45
Step-by-step explanation:
Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation:540+6*x-(810)=0
Pull out like factors :-270 + 6x = 6 • (x - 45)
Solve : x-45 = 0::
Add 45 to both sides of the equation: x = 45
What is LCM of 4a and
10a
Please explain I don’t understand
Answer:
it is 20a
Step-by-step explanation:LCM means least common multiple.so the least common multiple of 4a and 10a is 20a
.hope this helps!
Simplify the expression.(1/3)4
Answer:
4/3 or 1 1/3
Step-by-step explanation:
plz ive been stuck on this for an hour plzzz help?
Answer:
X=-8
Step-by-step explanation:
2 #7&"8*_8-*'7&-$(7
X<-8
On the number line, put the dot at -8 and shade to the left.
PLEASE HELP I DONT UNDERSTAND THIS AT ALL. IM CRYING. HELP ASAP!!!
Find the slope of the line that passes through the pair of points.
A(5, 4), B(8, –8)
a) 1/4
b) 4
c) –4
d) -1/4
Answer:
C. -4
Step-by-step explanation:
PLEASE HELP I WILL GIVE BRAINLYEST
-8x+-20=
Answer:
− 8 x- 20,
x = - 5/2
Step-by-step explanation:
rewrite 20 as 4 times 5,
and rewrite 8 as 4 times 2
= -4 times 2x - 4 times 5
= -4 (2x + 5)