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djverab [1.8K]
3 years ago
7

Please help all u need to do is find out a and b

Mathematics
1 answer:
Tomtit [17]3 years ago
5 0

Step-by-step explanation:

as we can see that the sides are in the ratio of 2:1 and are consecutive

so

a;b=2:1

a=4

b=8

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What is the answer?i need help I tried and it's not on the paper
Karolina [17]
You have to divide both sides by 2/3, and by doing that you'll get w= -5/4

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Step-by-step explanation:

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3 years ago
Si una matriz tiene una fila o columna de ceros su determinante es:
Anni [7]

Answer:

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Step-by-step explanation:

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4 0
3 years ago
Bill mixes candy costing 45cents per pound with candy costing 65cents a pound. A 7-pound box of the mix costs $3.65. How much of
Len [333]

Answer:

Bill should use 4.5 pounds of the candy costing 45 cents and 2.5 pounds of the candy costing 65 cents.

Step-by-step explanation:

With the information provided, you can say that the sum of the pounds of each type of candy is equal to 7, which can be expressed as:

x+y=7

Also, the statement indicates the 7 pound box costs $3.65 and you can say that the sum of the results of multiplying the price of each candy for the number of pounds is equal to $3.65, which is:

0.45x+0.65y=3.65

You have the following equations:

x+y=7 (1)

0.45x+0.65y=3.65 (2)

Now, you have to solve for x in (1):

x=7-y (3)

Then, you have to replace (3) in (2):

0.45(7-y)+0.65y=3.65

3.15-0.45y+0.65y=3.65

0.20y=0.50

y=0.50/0.20

y=2.5

Finally, you can replace the value of y in (3) to find x:

x=7-y

x=7-2.5

x=4.5

According to this, the answer is that Bill should use 4.5 pounds of the candy costing 45 cents and 2.5 pounds of the candy costing 65 cents.

4 0
3 years ago
Hamid bought 4.5 pounds of strawberries. The total cost of the strawberries was 8.10. How much did each pound of strawberries co
Ray Of Light [21]

Answer:

<h2>1.80 per pound of strawberries</h2><h2 />

Step-by-step explanation:

8.10 / 4.5 pounds = 1.80 per pound of strawberries

4 0
4 years ago
Read 2 more answers
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