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Tju [1.3M]
3 years ago
6

My daugher is trying to Solve -7.8x=-1.56  

Mathematics
1 answer:
Hunter-Best [27]3 years ago
8 0
You would just have to isolate for x
so it would simply become
-1.56/-7.8
= 0.2
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1. A bag of 12 oranges costs $2.99. What is the cost per orange?
Reil [10]

Answer:

1- $ 0.25.

2- $ 26.25.

3- $ 1.73.

Step-by-step explanation:

1- Given that a bag of 12 oranges costs $ 2.99, to determine what is the cost per orange, the following calculation must be performed:

2.99 / 12 = X

0.249 = X

Thus, the cost of each orange is $ 0.25.

2- Given that 4 slices of pizza cost $ 10.50, to determine what is the cost of 10 slices of pizza at this rate, the following calculation must be performed:

10.5 / 4 x 10 = X

2.625 x 10 = X

26.25 = X

Thus, the cost of 10 slices of pizza is $ 26.25.

3- Given that 4 pieces of candy cost $ 0.99, to determine what is the cost of 7 pieces of candy at this rate, the following calculation must be performed:

0.99 / 4 x 7 = X

0.2475 x 7 = X

1.7325 = X

Thus, the cost of 7 pieces of candy is $ 1.73.

6 0
2 years ago
A polygon is translated 3 units to the right and 4 units down, then it’s reflected across the x-axis, and then it’s dilated by a
Marrrta [24]

Answer:

(x,y)\rightarrow (4x+12,-4y+16)

Step-by-step explanation:

<u>1 transformation</u> - translation 3 units to the right and 4 units down. This translation has the rule

(x,y)\rightarrow (x+3,y-4)

<u>2 transformation</u> - reflection across the x-axis. This reflection has the rule

(x,y)\rightarrow (x,-y)

<u>3 transformation</u> - dilation by a factor of 4 with the origin as the center of dilation. This dilation has the rule

(x,y)\rightarrow (4x,4y)

Now, the sequence of these three transformation has the rule

(x,y)\rightarrow\limits^{\text{1st transformation}} (x+3,y-4)\rightarrow\limits^{\text{2nd transformation}}(x+3,-(y-4))\rightarrow\limits^{\text{3rd transformation}} (4(x+3),4(-(y-4)))\\ \\(x,y)\rightarrow (4x+12,-4y+16)

8 0
3 years ago
Check that all apply
Lena [83]

it's on only B

 this the solution

x>2

y>4

hope this helps you

5 0
3 years ago
Researchers surveyed one hundred students on
lesya [120]

Answer: 0.667

Step-by-step explanation:

Trust me

7 0
3 years ago
Read 2 more answers
List the first three common multiples of 4 and 5.
Sindrei [870]

Answer:

20, 40, and 60.

Step-by-step explanation:

Definition: A common multiple of two or more numbers is a number that can be divisible by each of those numbers.

Example: 10 is a common multiple of 2 and 5, because 10 can both be divisible by 2 and 5.

Question: Common Multiples of 4 and 5.

20 can be divisible by 4, and 5.

40 can be divisible by 4, and 5.

60 can be divisible by 4, and 5.

8 0
3 years ago
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