Answer:
Step-by-step explanation:
We have the system:
y+x=3
2y+x=-5
the question asks us to solve by substitution..
Let's subtract y from both sides of the first equation
y+x=3
-y -y
x=3-y
now, let's substitute 3-y as x into the second equation
2y+3-y=-5
combine like terms
y+3=-5
subtract 3 from both sides
y=-8
so the value of y is -8
now let's use that information to solve for x; we know that x is 3-y, so let's substitute the value of y to find x
x=3-y
x=3--8
x=11
the value of x is 11
as a point, your answer is (11,-8)
Hope this helps! :D
Nasim wants to buy a bracelet for his sister that costs $20 and he has a 20% off coupon. What is the discount cost of the bracelet?
Answer:
You get $4 off, so the bracelet will cost $16.
Step-by-step explanation:
hii please help i’ll give brainliest!!
Answer:
the thrid answer
Step-by-step explanation:
what number is 0.001 more than 437.999?
Answer:
Answer B. : 438 is 0.001 more.
One plane take of at 8:09P.M. And lands at 10:53PM. Another plane takes off at 9:14P.M. And lands at 12:31P.M. For how long were both planes in the air at the same time.
Answer:
1 hour 39 Minutes
Step-by-step explanation:
At 8:09 P.M
Only the first plane was in the air
At 9:14 P.M
Both Planes were in the air
At 10:53 PM
First plane lands
For how long were both planes in the air at the same time.
Both planes were in the air between the 9:14 P.M and 10:53 PM
Duration = 1 hour 39 Minutes
Part III: For each polynomial, determine the degree and write the polynomial in descending
order. (4 points: 2 points each)
A. -4x2 – 12 + 11x4 B. 2x5 + 14 - 3x4 + 7x + 3x3
Answer:
1,4
2,5
11x4-4x2-12
2x5-3x4+3x3+7x+14
Hi, may someone help me on this plz
Answer:
bx + bc = d would be checked as yes
Step-by-step explanation:
if you follow pemdos it would go as the following:
b(x+c) = d
b(x) + b(c) = d
bx + bc = d
I included a picture of what I need help on.
Answer:
x = 4
Step-by-step explanation:
In similar triangles, the ratios of the length of the corresponding sides are equal.
[tex]\frac{CD}{ED}=\frac{GD}{FD}\\\\[/tex]
[tex]\frac{48}{5x-2}=\frac{40}{2x+7}\\[/tex]
Cross multiply,
48*(2x + 7) = 40*(5x - 2) {use distributive property: a*(b+c)=(a*b)+ (a*c)}
48*2x + 48*7 = 40*5x - 40*2
96x + 336 = 200x - 80 {Subtract 96x from both sides}
336 = 200x - 96x - 80
336 = 104x - 80 {Add 80 to both sides}
336 + 80 = 104x
416 = 104x {divide both sides by 104}
416/104 = x
x = 4
- 2x + 5 = 4
Need help solving
Answer:
x = 1/2 or 0.5
Step-by-step explanation:
-2x + 5 = 4
-2x = 4 -5
-2x = -1
-1(-2x = -1)
2x = 1
x = 1/2 or 0.5
Find the value of x. Write your answer in simplest form.
Mrs. Simpson is frosting circular sugar cookies. Each cookie is 7 cm in diameter. How many square inches will she need to frost one dozen cookies?
Answer:
51.92 square inches
Step-by-step explanation:
Area of a circle = (pi)(r^2)
if the diameter is 7, the radius is 3.5
A = 3.14 x 3.5
A = 10.99 cm^2 for one cookie
10.99 x 12 for a dozen = 131.88 cm^2
converting cm to inches, you divide by 2.54
131.88/2.54 = 51.92 square inches.
LMK if you have questions.
A new bank customer with $3,000 wants to open a money market account. The bank is offering a simple interest rate of 1.1%. What will be the account balance after 20 years?
A: $3,600
B: $3,400
C: $3,660
D: $4,000
Running Problem, Please Help!!!
Answer:
400
Step-by-step explanation:
Is triangle sam congruent to triangle fig, if so , identify the similarity postulate or theorem that applies
Answer:
.
Step-by-step explanation:
Jerome wants to walk to school. He lives 2 and 1/4 miles away. So far, he has walked 7/8 of a mile. How far does he have left to go?
Answer:
2 miles
Step-by-step explanation:
Sarah and three of her classmates entered a story they wrote into a contest at the mall. Their team won, and they received a cash prize.
Each person won $21.25, so how much was the entire prize?
Answer:
Step-by-step explanation:
4 × $21.25 = $85
Please help me with this question please...
Caleb and 3 friends are sharing 1/6 quart of milk equally. What fraction of a quart of milk does each of the 4 friends get? Each friend gets blank of a quart of milk.
Answer:
the fraction of quart of milk does each of the four friend get is 1 ÷ 24
Step-by-step explanation:
The computation of the fraction of quart of milk does each of the four friend get is shown below:
= Sharing quart of milk × fraction of friends
= 1 ÷ 6 × 1 ÷ 4
= 1 ÷ 24
Hence, the fraction of quart of milk does each of the four friend get is 1 ÷ 24
PLSS HELP I WILL GIVE BRAINLIEST PLSSS
Jack is building a square garden. Each side length measures 777 meters. Jack multiplies 7\times77×77, times, 7 to find the amount of space in his garden is equal to 494949 square meters. Which measurement does 494949 square meters represent? Choose 1 answer: Choose 1 answer: (Choice A) A Area (Choice B, Checked) B Perimeter (Choice C) C Length Stuck?Use a hint.
Answer:
The answer is choice A that is "Area".
Step-by-step explanation:
According to the area of the square [tex](A)= side^2[/tex]
Given side =7
So, the area= [tex]7^2= 7 \times 7=49[/tex]
After 4 years the age of father is twice as old as his son . 5 years before the father age was 1 year more than triple age of his son.
Answer:
Step-by-step explanation:
After 4 years the age of father is twice as old as his son . 5 years before the father age was 1 year more than triple age of his son.
What is the equation of the line that passes through the point (5, -7) and has a
slope of o?
Answer:
y = -7
Step-by-step explanation:
To find the y-intercept, you need to plug the coordinates into the equation.
y = 0x + b
-7 = 0(5) + b
-7 = b
Damon measured his bedroom and the length measured 5.6 meters. Given that I meter = 3.28 feet, what is the length of Damon's room in feet? Ο Α. 0.59 feet о В. 1.47 feet O C. 5.6 feet D. 18.37 feet
Answer:
D) 18.37 feet
Step-by-step explanation:
5.6 x 3.28 = 18.37 feet
The height of an overhand volleyball serve can be modeled as h=-16t^2+20t+6. After how many seconds is the ball 11 feet.
Answer:
0.9043secs and 0.3456secs
Step-by-step explanation:
Given the height of an overhand volleyball modeled as h=-16t^2+20t+6.
If the height is 11feet, then;
11 = -16t^2+20t+6.
-16t^2+20t+6 - 11 = 0
-16t^2+20t-5 = 0
Multiply thriugh by -1
16t^2-20t+5 = 0
Factorize
t = 20±√20²-4(16)(5)/2(16)
t = 20 ±√400-320/32
t = 20 ±√80/32
t = 20 ±4√5/32
t = 20±8.94/32
t = 28.94/32 and 11.06/32
t = 0.9043 and 0.3456
Hence the required time are 0.9043secs and 0.3456secs
Which set of three angles could represent the interior angles of a triangle?
O 26°, 510, 1030
O 290, 540, 1070
35°, 35°, 20°
10°, 90°, 90°
Answer:
26°,51°,103°
Step-by-step explanation:
sum of angles=180°
Ellie works at a camp . Her age is a multiple of 6 and a multiple of 8 . What is the youngest age Ellie could be ?
Answer:
24
Step-by-step explanation:
Write down 6 and 8 on a piece of paper. Write down all the multiples of 6 (6, 12, 18...) and do the same for 8 (8, 16, 24). Stop at the 12th multiple. (For six it's 72, and for 8 it's 96. ) Go over all the multiples and see if there are any answers that are alike. (Sometimes there isn't any so keep the pattern going.) For this example, some multiples that they share are 24, 58, and 72. The one that is the lowest is 24. Ellie is 24.
find the slope of the line that passes through the two given points of (-3, 4) and (-3, -8)
Answer:
it is not express because the line is parallel at y axis
Step-by-step explanation:
in the first quadrant you start at 4,6 then u move 6 units right and 5 units up
Answer:
10, 11
Step-by-step explanation:
4 plus 6 = 10
6 plus 5 = 11
Use the simple interest formula to find the interest earned and the ending balance. I = Prt
1. $48,000 at 3% for 6 years
Answer:
$8,640
Step-by-step explanation:
I = Prt
I = (48000)(0.03)(6)
I = 8640
The eight segments from the center of a cube to the eight corners of the cube form the edges of six pyramids. If one edge of the cube is 4 in, what is the volume of each pyramid, to the nearest cubic inch?
Here's link to the answer:
tinyurl.com/wpazsebu
SOMEONE HELP ME PLSSSSSSS
Answer:
y = 8x
Step-by-step explanation:
hope this is what u need if not comment and I'll change it
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