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2 years ago

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Mathematics

2 answers:

const2013 [10]2 years ago

8 0

B or c . I think it’s b though I don’t know for sure

Phantasy [73]2 years ago

3 0

Answer:

The answer is B

Step-by-step explanation:

It becomes 8y = -3x + 12.

Then divide by 8 on both sides.

y = -0.375+1.5

This you can turn it into a fraction which is y = -3/8 + 1.5

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Last year there were 221 students and 13 teachers at Hillard School. This year there are 272 students. The principal wants to ke

hram777 [196]

Answer:

see explanation

Step-by-step explanation:

Using proportion to find the teachers required x, then

$\frac{221}{272}$ = $\frac{13}{x}$ ( cross- multiply )

221x = 3536 ( divide both sides by 221 )

x = 16

The number of teachers required this year is 16

6 0

4 years ago

Read 2 more answers

Explain how to solve this, step by step?

andrey2020 [161]

Answer:

The cost of chair is $\$260$

The cost of a lamp is $\$65$

The cost of a table is $\$237$

Step-by-step explanation:

Let

x----> the cost of chair

y----> the cost of lamp

z----> the cost of table

we know that

$x+y+z=562$ ----> equation A

$x=4y$ -----> $y=x/4$ -----> equation B

$z=x-23$ ------> equation C

substitute equation C and equation B in equation A and solve for x

$x+(x/4)+(x-23)=562$

$(9/4)x=562+23$

$(9/4)x=585$

$x=585*4/9=\$260$

Find the value of y

$y=260/4=\$65$

Find the value of z

$z=260-23=\$237$

therefore

The cost of chair is $\$260$

The cost of a lamp is $\$65$

The cost of a table is $\$237$

7 0

3 years ago

A: B =2 : 5. What is B if A is 6?

weeeeeb [17]

Answer:

THE ANSWER IS 15

Step-by-step explanation:

A:B=2:5

6:B=2:5

2B=6*5

2B=30

B=30/2

B=15

3 0

4 years ago

What are the zeroes of y=x^2+14x+40

a_sh-v [17]

$y=x^2+14x+40$

$y-x^2-14x-40=0$

In general, given $a{x}^{2}+bx+c=0$ , there exists two solutions where

$x= \dfrac{14+2 \sqrt{y+9} }{-2} , \dfrac{14-2 \sqrt{y+9} }{-2}$

$x=-7- \sqrt{y+9},-7+ \sqrt{y+9}$

3 0

3 years ago

Which numner is bigger -24 or -16<br><br>passes helppp

wlad13 [49]

Answer:

-16

Step-by-step explanation:

-16 is a bigger number than -24 because its closer to positive numbers on the number line. Closer to 0 or 1 on the number line.

4 0

3 years ago

Read 2 more answers

Need help ASAP (IMAGE ATTACHED)​

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