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Arturiano [62]
3 years ago
8

2.25(a+1.3)=20.7 what is the value of a ? ​

Mathematics
1 answer:
Gnom [1K]3 years ago
4 0

Answer:

7.9

Step-by-step explanation:

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I need a word problem that has a negative - positive
AleksandrR [38]

Answer:

Here it is

Step-by-step explanation:

You are 58 dollars in debt, and your friend pays you 73 dollars.  How much money do you have?  Does that work for you?

8 0
2 years ago
In 1999 Daniel was 146 cm tall. He grew to be 176 cm by the year 2006. What was Daniel's rate of growth over this period of his
andreyandreev [35.5K]

Answer:

he grows by 5 cm every year between 1999 and 2006

Step-by-step explanation:

This is a arithmetic progression problem with the formula;

T_n = a + (n - 1)d

We are told that In 1999 Daniel was 146 cm tall. He grew to be 176 cm by the year 2006.

Thus;

a = 146

d = 2006 - 1999 = 7

Thus;

176 = 146 + (7 - 1)d

176 - 146 = 6d

30 = 6d

d = 30/6

d = 5 cm

Thus, he grows by 5 cm every year between 1999 and 2006

3 0
3 years ago
Francesca is growing 12 inches each year. How many years will it take for her to grow 6 inches
worty [1.4K]

Answer:

half a year

Step-by-step explanation:

if she grows 12 inches in one year 6 is half of that so half a year or 6 months

5 0
2 years ago
Read 2 more answers
A rectangle has an area of 183.6 square miles and a base of 10.2 miles. What is the height?
aalyn [17]
18 miles

183.6 divided by 10.2 = 18, and to check the answer if we multiply 18 and 10.2 it equals 183.6
3 0
3 years ago
Janet made 75 more cookies to sell at the
UNO [17]

Answer:

200

Step-by-step explanation:

Janet = x + 75

Kathy = x

2x + 75 = 325

2x = 325 - 75

2x = 250

x/Kathy = 125

x + 75/Janet = 125 + 75

= 200

4 0
3 years ago
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