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3 years ago

I need help with this

Mathematics

1 answer:

guapka [62]3 years ago

5 0

Answer:

A: Fraction = 11/16 of an inch. Decimal = .6875 inch

B: Fraction = 2 1/2 inch. Decimal = 2.5 inch

Step-by-step explanation:

Each inch is divided by 16ths on the ruler. Count where the measured values lay on the ruler. Once you find the fraction you can divide the fraction to find the decimal answer.

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13 = -7 + 9x - 5x<br> X =

brilliants [131]

Answer:

x = 5

Step-by-step explanation:

Given

13 = - 7 + 9x - 5x , that is

13 = - 7 + 4x ( add 7 to both sides )

20 = 4x ( divide both sides by 4 )

5 = x

3 0

3 years ago

2(x + 1 ) - 3(x + 5) ≥ 0<br> pls help

Furkat [3]

Answer:

x≤−13

Step-by-step explanation:

isolate the variable by dividing each side by factors that don't contain the variable

6 0

3 years ago

How do u divide fractions

Lelu [443]

Keep, change, flip

Example: 3/4 divided by 6/8

Step 1: keep 3/4

Step two: change the division sign to a multiplication sign

Step 3: flip 6/8 and make it 8/6

Step 4: multiply it, then that’s your answer to the division problem

8 0

3 years ago

How can you get 24 by using 1, 1/2, 3 and 6 (one each) with simple mathematical operations?

Tcecarenko [31]

Answer:

(3+1)X 6

Step-by-step explanation:

that means 4x6

7 0

3 years ago

A red ant travels 9/8 inches in 3/4 minutes and 3 3/8 inches in 2 1/4 minutes what is the ants speed in inches per minute? What

I am Lyosha [343]

Answer:

1. 1.5 inches per minute

2. 90 inches per hour

Step-by-step explanation:

speed = $\frac{distance}{time}$

1. total distance covered = $\frac{9}{8}$ + $\frac{27}{8}$

= $\frac{9+27}{8}$

= $\frac{36}{8}$

= 4 $\frac{1}{2}$ inches

Total time taken = $\frac{3}{4}$ + $\frac{9}{4}$

= $\frac{3 +9}{4}$

= $\frac{12}{4}$

= 3 minutes

The ants average speed = $\frac{4.5}{3}$

= 1 $\frac{1}{2}$

= 1.5

The ants speed is 1 $\frac{1}{2}$ inches per minute.

2. Since;

60 minutes = 1 hour

3 minutes = x hours

x = $\frac{3}{60}$

= $\frac{1}{60}$

= 0.05 hours

Speed = $\frac{4.5}{0.05}$

= 90 inches per hour

The red ants speed is 90 inches per hour.

3 0

3 years ago

I need help with this​

I need help with this