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miv72 [106K]
3 years ago
11

What is the sum of the two expressions -2.9a+6.8 and 4.4a-7.3

Mathematics
1 answer:
Lady bird [3.3K]3 years ago
4 0

Answer:

1.5a - 0.5

Step-by-step explanation:

Add like terms

4.4 - 2.9 = 1.5

7.3 - 6.8 = 0.5

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The picture shows the number of colored shirts sold this week at Joan’s Clothing Shop. Joan assumes this trend will continue. Sh
lisov135 [29]

Answer:

She should order 96 orange shirts  

Step-by-step explanation:

The picture is shown below.

From the picture below Joan sold 10 blue shirts, 3 gray shirts , 5 orange shirts and 8 green shirts out of the colored Shirts. The ratio of the colored shirt sold are 10 : 3 : 5 : 8 . The total shirt sold that week is 10 + 3 + 5 + 8 = 26 colored shirts.

If she assumes the trend is going to continue the number of orange she should order can be calculated below.

Let us find the ratio of orange shirt sold to the total colored shirt sold.

orange shirt sold / total colored shirt sold  = 5/26

This means every group of 26 colored shirts sold will have 5 orange shirt . So they told us she requested a total of 500 colored shirts . Following the same trend, how many group of 26 colored shirt are in 500.  

5/26 = x/ 500

cross multiply

2500 = 26x

divide both sides by 26

x = 2500/26

x = 96.15

x = 96 orange shirts

She should order 96 orange shirts  

6 0
3 years ago
Read 2 more answers
we said that the ratio of girls to boys in the class was 2:9. if there were 90 boys in the 9th grade, how many girls are there
Juliette [100K]

Answer:

20

Step-by-step explanation:

If the ratio of boys is 9 there are 90 boys. If 9=90 then 1= 10. 10 x 2 = 20

I hope this helps :0)

7 0
3 years ago
Read 2 more answers
Can someone help me with percents ?
denpristay [2]
The person HAD homework 75/100 or 75%

the remaining days he did NOT have homework , which is 25/100 or 25%
8 0
3 years ago
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Need help with Writeing the quadratic function with at two zero where x = ‒2 and x = 0.
Pachacha [2.7K]
We can create the equation like this:
(x +2) * (x +0)
x^2 + 2x + 0 = 0

8 0
3 years ago
A certain breed of mouse was introduced onto a small island with an initial population of 320 mice, and scientists estimate that
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Y=2x+320
x being the number of years and 320 being the initial population of mice
7 0
3 years ago
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