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3 years ago

Solve for x x/9=7 i need help

Mathematics

1 answer:

motikmotik3 years ago

4 0

Answer:

x = 63

Step-by-step explanation:

Step 1: Solve for x by multiplying both sides by 9

x/9 * 9 = 7 * 9

x = 63

Answer: x = 63

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Use the operation signs +,-, x, and ⌯ once each in the expression below to make the number sentence true. Why does your answer m

Zepler [3.9K]

Answer:

$6 * (3 - 1) + 5 \div 1 = 17$

Step-by-step explanation:

Given

$6\ [\ ]\ (\ 3\ [\ ]\ 1\ )\ [\ ]\ 5\ [\ ]\ 1\ =\ 17$

Required

Fill in the box with +,-, x, and ⌯ (once each)

This question is solved using trial by error approach.

After some tests, the solution that matches the equation is:

$6 * (3 - 1) + 5 \div 1 = 17$

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3 years ago

Write an inequality to model the situation. a number exceeds 9.

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3 years ago

Read 2 more answers

a number is divided by 3 and the result is added to 1. the new result is doubled to give the final result 80. whats the number

Gnesinka [82]

78, because you have to do the inverse operation so 80/2= 40 then 40-1= 39 and 39*3 = 78

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4 years ago

Trevor Has a Fair coin and a six-sided number cube with a number 1 through 6 on each side. He flips the coin and rolls a number

mina [271]

Answer:

1/12

Step-by-step explanation:

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8 0

3 years ago

Gina is a certain age (g). Gina's older sister is twice Gina's age. Gina's brother is half Gina's age. The sum of their ages is

aliina [53]

Answer:

Gina is 12 years old

Step-by-step explanation:

First, we will have to write these statements mathematically and then solve.

Let Gina's age be x, let Gina's brother's age be y and let Gina's sister's age be z.

The second statement"Gina's older sister is twice Gina's age" can be mathematically written as: z =2 x ---------------------------(1)

The next statement "Gina's brother is half Gina's age" can be mathematically written as y = $\frac{x}{2}$ ---------------------------------------(2)

Then the next statement "the sum of their ages is 42" can be mathematically written as: x + y + z = 42 ----------------------------(3)

We can now proceed to solve;

Substitute equation (1) and equation(2) into equation (3)

x + y + z = 42

x + $\frac{x}{2}$ + 2x = 42

Multiply through by 2

2x + x + 4x = 84

7x = 84

Divide both-side of the equation by 7

$\frac{7x}{7}$ = $\frac{84}{7}$

x = 12

Therefore, Gina is 12 years old

7 0

3 years ago