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4 years ago

Write a number sentence that tells what the model represents

Mathematics

1 answer:

atroni [7]4 years ago

8 0

Well it depends on what the model is but if it's an IRA or whatever so if you make your own model that's easy

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Letters A, B, D and E represent numbers on the number line. The number line has evenly spaced marks

Alex787 [66]

Answer:

0.5

Step-by-step explanation:

sjsbdir rievrjrvrjrbrhdbdjdbekebejebsjsbsirvrirvrjrrhirvrjrbrjr dry it said it had to be 20 characters long

6 0

3 years ago

If the working age population is 250 million, 170 million are employed and 9 million are unemployed, the unemployment rate is

mr Goodwill [35]

Answer:

5.0

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

Which statement makes the open sentence true 2x-7= -1

oee [108]

Answer:

Step-by-step explanation:

if you plug in 3 for x, it becomes 2(3)-7=-1

then 6-7=-1

-1=-1

6 0

3 years ago

What should be done to x^2 + 15x in order to create a perfect square?

lana [24]

$\bf \qquad \textit{perfect square trinomial} \\\\ (a\pm b)^2\implies a^2\pm \stackrel{\stackrel{\text{\small 2}\cdot \sqrt{\textit{\small a}^2}\cdot \sqrt{\textit{\small b}^2}}{\downarrow }}{2ab} + b^2 \\\\[-0.35em] ~\dotfill$

$\bf x^2+15x+\boxed{?}^2\implies \stackrel{\textit{we know the middle term is}}{2\sqrt{x^2}\cdot \sqrt{\boxed{?}^2}\implies 2x\boxed{?}}\qquad then\qquad 2x\boxed{?}=15x \\\\\\ \boxed{?}=\cfrac{15x}{2x}\implies \boxed{?}=\cfrac{15}{2}\qquad \impliedby \textit{we should add that much \underline{squared}} \\\\[-0.35em] ~\dotfill\\\\ x^2+15x+\left( \cfrac{15}{2} \right)^2\implies \left(x+ \cfrac{15}{2} \right)^2$

5 0

3 years ago

Someone please help me. ASAP

Svetllana [295]

Answer:

y=2

Step-by-step explanation:

1/3 (y+7) = 3(y-1)

Multiply each side by 3 to get rid of the fraction

3*1/3 (y+7) = 3*3(y-1)

y+7 = 9(y-1)

Distribute

y+7 = 9y - 9

Subtract y from each side

y+7-y = 9y-y-9

7 = 8y -9

Add 9 to each side

7+9 = 8y-9+9

16 = 8y

Divide each side by8

16/8 = 8y/8

2 = y

5 0

3 years ago