3 years ago

What is the product as a sum for (x + 7)(2x – 5)

Mathematics

1 answer:

True [87]3 years ago

8 0

Answer:

Step-by-step explanation:

u add both of the x's and add 7 and 2 then u times 7 and 5

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Tommy can exchange 8 euros for 1 dollars.

mars1129 [50]

Answer:

I don't really know the answer because I don't

Step-by-step explanation:

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2 years ago

The mean of 15 numbers is y.If each of the number is increased by 30, find the increase of the new mean in terms of y.The answer

dusya [7]

Answer:

y+30

Step-by-step explanation:

the sum of the numbers is 15y

the new sum after increase each number by 30 is 15y+450

the new mean 15y+450/15

= y+30

4 0

2 years ago

Simplify foundation of alegebra

Eva8 [605]

1.) -8 + 10(6 + 4r)

First multiply the 10 into (6 + 4r)

-8 + 60 + 40r

52 + 40r

2.) (8m² - 8m + 8) - (2m - 7m² - 6)

Distribute the - into (2m - 7m² - 6)

8m² - 8m + 8 - 2m + 7m² + 6

Combine like terms

15m² - 10m + 14

(idk if you need to factor this or if you can leave it as is)

3 0

3 years ago

Which equation has a solution of -10? -28+32+x=-40 -28x+32x=-40 -28−32+x=6 -28x+23x=2

Leno4ka [110]

I think it is the 3rd one but I might be wrong...

8 0

3 years ago

Read 2 more answers

100 pts help me please.

Natalija [7]

Answer:

Carly's expenditure was $240 and the number of boxes of cards was required is 24 boxes.

Step-by-step explanation:

We know that:

48 + 8(b) = Carly's expenditure
10(b) = Carly's expenditure
48 + 8b = 10b
B = Boxes of cards

Work:

48 + 8b = 10b
=> 48 + 8b - 8b = 10b - 8b
=> 48 = 2b
=> b = 24

Now, let's substitute the value of b into any equation.

10(24)
=> 240

Hence, Carly's expenditure was $240 and the number of boxes of cards was required is 24 boxes.

Hoped this helped.

$BrainiacUser1357$

7 0

2 years ago