All categories

2 years ago

12 decreased by eight times a number is 36 find the number

Mathematics

2 answers:

mina [271]2 years ago

4 0

Answer:

Step-by-step explanation:

You take 12 and subtract 8. You should get 4. Then you divide 36 by 4 and you get 9. So, 12 - 8 x 4 = 36.

vesna_86 [32]2 years ago

4 0

The answer is 9
12-8•9=36

You might be interested in

Help please!!! i need it by 2:00 today. i will give brainliest

MA_775_DIABLO [31]

Answer:

Below in bold.

Step-by-step explanation:

x-intercepts (-3,0) and (6, 0)

y-intercept (0, -5)

Axis of symmetry:

(-3 + 6) / 2 = 1.5

x = 1.5.

Domain = all real x.

Range is f(x) ≥ -6.

Graph is positive for x < -3 and x > 6.

Negative for -3 < x < 6.

Increasing for x > 1.5 and decreasing for x < 1.5.

4 0

2 years ago

The perimeter of a rectangular concrete slab is 106 feet and its area is 570 square feet. What is the length of the longer

Sliva [168]

Answer:

The length of the long side of the rectangle is 38 ft.

Step-by-step explanation:

If we test out all possible factors, we will see that 15 x 38 is the most fitting.

Perimeter: 15 + 15 + 38 + 38 = 106 ft.

Area: 15 x 38 = 570 square ft.

38 ft. is the measurement of the long side and 15 ft. is the measurement of the smaller side.

7 0

2 years ago

Read 2 more answers

MUST BE CORRECT ANSWER HELP ASAP

Nina [5.8K]

Answer:

40287600 = B. 4 x $10^{7}$

Step-by-step explanation:

<u>We first have to do the multiplication of the numbers given:</u>

19 * 2,120,400

=> 40287600

<u>Now we have to figure out how many digits are after the number 4:</u>

4, 0 2 8 7 6 0 0

7 digits

Meaning that we need an exponent of 7 for it to be in scientific notation, giving us with the answer B. 4 x $10^{7}$

6 0

2 years ago

Tommy can ride his bicycle 4.5 miles in 15 minutes. How many miles can he ride in 75 minutes

adoni [48]

Here, we need to set up a proportion.

4.5 miles in 15 minutes.

In 75 minutes, how much miles can he ride?

4.5/15 = x/75

Cross multiply

4.5 * 75 = 337.5
15*x = 15x

15x = 337.5

15x/15 = 337.5/15
x= 22.5

Final answer:- Tommy can ride 22.5 miles in 75 minutes.

5 0

2 years ago

Read 2 more answers

Bobby wants to go on a school trip that will cost him $250. He comes up with an equation that represents how much he needs to sa

monitta

Yes, Bobby will have enough money if he saves for 9 weeks. You can find this through either substituting w for 9 in the equation, or solving the equation itself.

Substituting:

$25(9)+30$
Substitute w for 9.

$225+30$
Simplify.

$225+30=255$
Solve.

255 is greater than 250, so yes, he will have enough money saved.

Solving the equation:

$25w+30=250$
Original Equation

$25w=220$
Subtract 30 from both sides.

$w=8.8$
Divide both sides by 25.

The number of weeks he needs is 8.8. When rounding it up, you get 9.

4 0

2 years ago