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3 years ago

Four students spent $9.40 on school lunch.at this rate,predict the amount 10 students would spend on the same school lunch

2 answers:

8 0

You will need to know how much each lunch cost
so
9.40 <span>÷ 4 = 2.35
so each lunch cost 2.35 dollars

now we need to find out how much it will cost for 10 lunches

10 x 2.35 = 23.5

so for 10 lunches it will cost 23.5</span>

elixir [45]3 years ago

5 0

We have an equation: 4/10= 9.40/?

Cross multiply:
4*? = 9.40*10
⇒ ?= 9.40*10/4= 23.5

10 students would spend $23.50 on the same school lunch~

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Step-by-step explanation:

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3 years ago

Kendal bought x boxes of cookies to bring to a party. Each box contains 12 2 points

valina [46]

9514 1404 393

Answer:

y = 12x +24
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Step-by-step explanation:

If there are x boxes, each containing 12 cookies, then the number of cookies in the boxes is 12x. If there are 24 more cookies than that at the party, we have ...

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3 years ago

Differenciate by first principles f(x) = 4x²-4x-3

zysi [14]

$f(x) = 4x^2-4x-3\\
f'(x)=\lim_{h\to0}\frac{f(x+h)-f(x)}{h}\\
f'(x)=\lim_{h\to0}\frac{4(x+h)^2-4(x+h)-3-(4x^2-4x-3)}{h}\\
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f'(x)=\lim_{h\to0}\frac{4x^2+8hx+4h^2-4h-4x^2}{h}\\
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4 years ago

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arlik [135]

Answer:

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Step-by-step explanation:

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4 years ago

Which diagram shows plane PQR and plane QRS intersecting only in QR

butalik [34]

Answer:

Correct choice is 3

Step-by-step explanation:

Two intersecting planes intersect in line consisting of all common points of both planes. You cna name this line knowing at least two common points of these two lines.

1 picture shows that planes PQS and PRS intersect in PS (common points are P and S).

2 picture shows that planes PRS and PQR intersect in PR (common points are P and R).

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3 years ago

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