Four children have small toys. The first child has 1/10 of the toys, the second child has 12 more toys than the first, the third child has one more toy of what the first child has and the fourth child has double the third child. How many toys are there?

Answers

Answer 1

Answer: Call x the amount of toys the first child has.We write the equation x+(x+12)+(x+1)+2(x+1)=10x.This is equal to 5x+15=10x. Subtracting 5x, we see that 5x=15, so x=3. There are 10x toys, so we have 3*10=30 total toys.

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Answers

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Angle R and S are complementary angles If M angle R= (6x-47) and m angle S = (x+4) find m angle S

Answers

Answer:

Step-by-step explanation:

x + 4 + 6x - 47 = 90

7x - 43 = 90

7x = 133

x = 19

S = 19 + 4 = 23

R = 6(19) - 47 = 114 - 47 = 67

The width of a rectangle is three units less than the length. The area of the rectangle is 4 units. What is the length, in units, of the rectangle

Answers

length is 4

area= l*w

4-3=1

4*1= 4

Yvette is trying to calculate the distance between point C(1, 2) and point D(7, 10). Which of the following expressions will she use?

Answers

For the answer to the question above, this can be solve using the distance formula: D = sqrt [ (x2 – x1)^2 + (y2 – y1)^2] So the expression she should use is: D = sqrt [ (7 – 1)^2 + (10 – 2)^2] Then the answer would be: D = sqrt [ (6)^2 + (8)^2] D = 10 I hope my answer helped you.

What should be done to both sides of the equation in order to solve y + 8.5 = 17.2?

Answers

In order to solve for y, you would have to subtract 8.5 to both sides. Therefore, it would be y = 8.7. Good luck!

Can you answer it right now pls

Answers

Answer:

4 times 10 to the negative seventh power

Step-by-step explanation:

We can see that the decimal has 6 zeros before it, and then it’s 4.

since there are 7 digits after the decimal point, we put 10 to the negative seventh power.

that gives us 0.0000001

to get 0.0000004, we need to multiply ten to the negative seventh power (0.0000001) by 4

The answer is a. which is 4 x 10‐⁷

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Someone Pliz help me