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Olin [163]
3 years ago
5

Evaluate the expression if a = 9 and b = 2. 5(a 3b) 20 51 70 75

Mathematics
1 answer:
devlian [24]3 years ago
5 0
5(a + 3b) = 5(9 + 3(2)) = 5(9 + 6) = 5(15) = 75
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The bread is on sale for $1.50 so Erica is also going to buy candy or gum. Which can she afford?
Alborosie
Ok, so she started off with $5.00. 


She bought milk for $2.99.

She buys bread, which costs $1.50. 

Subtracting the money she wasted, the total would be $0.51. 

The only thing she could buy is 5 pieces of gum for 25 cents. 

Her change will be $0.26. 

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6 0
2 years ago
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Allisa [31]
The answer is -10=-15+5x x = 1
6 0
3 years ago
A bag contains five white marbles and five black marbles. What is the probability of drawing a white marble, not replacing it, a
Lelu [443]

~ ANSWER=1/2 ~

Simple probability is found by counting all the results which fit requirements and dividing by all possible results.

To find probability of two results in a row, multiply chance of first result by chance of second result.

Since you are replacing the marble before the second draw, we don’t have to figure out the various changes in odds for the different possible first draws. It’s just that simple.

There are 5 white marbles

There are 4 red marbles

There are always 20 marbles in all

5/20*4/20=1/4*1/5=1/20 or 1/2

By coincidence, the same as the chance of drawing the white marble in one draw.

6 0
3 years ago
How do i rename 2/7 and 10/21 and whats the most common denominator for them
emmainna [20.7K]

Answer:

just multiply 7 by 21 and 21 by 7

like

2*21/7*21. + 10*7/21*7

41/147+ 70/147

111/147. Ans

6 0
3 years ago
Read 2 more answers
Please help me please !!
sweet [91]

Answer:

Acute

Step-by-step explanation:

7² + 9² ? 11²

49 + 81 ? 121

130 is greater than 121, so it is an acute triangle

8 0
3 years ago
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