2 years ago

I REALLY DONT GET THESE!! HELP

Mathematics

1 answer:

MakcuM [25]2 years ago

3 0

Answer:

u need a protractor to do that

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Olivia has an average score 90 on her five French tests if she earns a score of 98 on the sixth test what will he average score

SVETLANKA909090 [29]

Answer:

91.33

Step-by-step explanation:

90x5=450, add 98 to get 548. Since there are 6 tests, divide 548 by 6 and you get 91.33

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3 years ago

The edges of a cube increase at a rate of 2 cm divided by s. How fast is the volume changing when the length of each edge is 40

Dmitry_Shevchenko [17]

Answer:

Step-by-step explanation:

Let the edge of the cube be a .

Given

$\frac{da}{dt} = 2 cm/s$

Volume V = a³

$\frac{dV}{dt} = 3a^ 2\frac{da}{dt}$

= 3a² x 2

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3 years ago

This question is a Fractions as divisions and it's kinda bit harder to figure it out.

Elodia [21]

10 liters of gas fill one tank.
x liters of gas fill x/10 tanks.
35 liters of gas fills 35/10=7/2 tanks
7/2 can also be written as 3.5 or the mixed number (3 and 1/2)

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3 years ago

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A car can travel 28 miles per 1 gallon of gas. How far can the car travel on 14 gallons of gas

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3 years ago

What is the solution to the equation 7(a – 10) = 13 – 2(2a 3)?

geniusboy [140]

7(a - 10) = 13 - 2(2a + 3)
7a - 70 = 13 - 4a - 6 = 7 - 4a
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