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NNADVOKAT [17]
3 years ago
13

Bertha read 21 books. Each book had 155 pages. How many pages did she read altogether? 465 pages

Mathematics
2 answers:
frez [133]3 years ago
3 0
21 x 155 = 3255
She read 3255 pages altogether.
Tasya [4]3 years ago
3 0

Answer:

3,255 pages

Step-by-step explanation:

multiply 155 by 21

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Suppose that we were going to conduct a study to determine if there is an decrease in risk of getting lung cancer based on wheth
nalin [4]

Answer: Option C

Step-by-step explanation:

In group(1), the risk is= 5/2000 x 100

                          = 0.25

In group(2), the risk is= 5/1000 x 100

                         = 0.5

The sample relative risk is= 0.25/0.5

                                          = 0.5

So, option C is correct.

7 0
3 years ago
coffee worth 90 cents per pound is mixed with coffee worth 60 cents per pound ro produce a twenty pound blend worth 72 cents per
Evgesh-ka [11]
90x+60y=72
60y=-90x+72
y=-1.5x+1.2

then create a graph using this formula.

Hope this helps!

8 0
3 years ago
Four students took an exam the fraction of the total possible points that each received is given which students had the highest
Fittoniya [83]

Answer:

4% out of 100

Step-by-step explanation:

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7 0
3 years ago
Cedric and Josh both ordered the same size pizzas at Marco’s Pizzeria; however, they ordered different toppings. Marco’s charges
Oksanka [162]
Let
C---------> <span>the cost of a pizza
</span>t----------> <span>number of toppings

we know that
</span>$15.74-3t=$14.49-2t
15.74-14.49=3t-2t-------------> t=1.25

the cost of one topping is $1.25
and the cost of one pizza <span>without topping is
</span>15.74-3*1.25--------> $11.99

then
<span>an equation for the cost of a pizza, C, as a function of the number of toppings, t ordered is
</span>C=11.99+1.25t

the answer is 
C=11.99+1.25t
6 0
3 years ago
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Bingel [31]
Because it has more mass so with less mass it accelerates faster. That is newtons 2nd law of motion.
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