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3 years ago

Identify the self assessment test that each

Mathematics

1 answer:

ladessa [460]3 years ago

5 0

there is not enough info for this

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If lena is making 10.5B dollars a year how many years will it take lena to make 100B dollars?

PIT_PIT [208]

100/10.5= 10
hope this helps

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3 years ago

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At the end of the first day three of the cricketers scored these runs 28, 61 and 39

prohojiy [21]

Answer:

His friend took one from 61 and added it to 39. That made it easy to mentally add 40 and 60 to get 100. Then he mentally added 28 to 100 to get 128.

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3 years ago

Find the product of this question down below

Degger [83]

Answer:

$\large\boxed{D)\ \dfrac{8}{7}}$

Step-by-step explanation:

$8\left(-\dfrac{2}{7}\right)\left(-\dfrac{1}{2}\right)\\\\\text{the product of two negative numbers is positive}\\\\8\cdot\dfrac{2\!\!\!\!\diagup^1}{7}\cdot\dfrac{1}{2\!\!\!\!\diagup_1}=8\cdot\dfrac{1}{7}\cdot\dfrac{1}{1}=\dfrac{8}{7}$

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3 years ago

Xanthia can read 100 pages per hour and Molly can read 50 pages per hour. If they each read the same book, and the book has 225

Talja [164]

Answer:

135 minutes

Step-by-step explanation:

Let

y -----> the number of pages to finish reading the book

x ----> the number of hours

we know that

The linear equation in slope intercept form is equal to

$y=mx+b$

where

m is the unit rate or slope of the linear equation

b is the y-intercept or initial value

In this problem we have

<em>Xanthia</em>

$m=100\ pages/hour$

$b=225\ pages$

$y=-100x+225$ ----> the slope is negative because is a decreasing function

For y=0

substitute and solve for x

$0=-100x+225$

$100x=225$

$x=2.25\ hours$ ---> Xanthia's time to finish reading the book

<em>Molly</em>

$m=50\ pages/hour$

$b=225\ pages$

$y=-50x+225$ ----> the slope is negative because is a decreasing function

For y=0

$0=-50x+225$

$50x=225$

$x=4.5\ hours$ --- Molly's time to finish reading the book

To find out how many more minutes than Xanthia would it take for Molly to finish reading the book, subtract Xanthia's time from Molly's time

$4.5\ h-2.25\ h=2.25\ h$

Convert to minutes

Multiply by 60

$2.25\ h=2.25(60)=135\ minutes$

4 0

3 years ago

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Umar has 5 dimes in his right pocket and three dimes in his left pocket how much money does Omar have? What is the hidden questi

lukranit [14]

Answer:

he has 80 cents

Step-by-step explanation:

dime=10 cents

7 0

3 years ago

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