Use the distributive property to fill the blanks. 3x(8-1)=(3x_)-(3x

uka and Anja each measured the height of their friend three times. Their friend is 59 inches tall. They recorded their measureme

erastovalidia [21]

<span>Luka’s measurements are more precise, but Anja’s measurements are more accurate is the answer . because luka rounded the answer while anja is giving you the true value her answers are going to be more accurate cheers </span>

7 0

4 years ago

Read 2 more answers

1. A roller coaster holds 30 people. There are 252 people waiting for a ride. How

ASHA 777 [7]

Answer:

They would need to wait almost 9 times to ride.

Step-by-step explanation:

252 divided by 30 equals 8.4.

4 0

3 years ago

Plz Help???

GREYUIT [131]

1.
12 liters of 26% acid solution contain $26\% \times 12=0.26 \times 12=3.12$ liters of acid.
x liters of 40% acid solution contain $40\%x=0.4x$ liters of acid.
The third solution is made from the two mixed solution so its volume is $12+x$ , and the volume of acid in it is $0.4x+3.12$ . Its concentration is 33% or 0.33.
The concentration of a solution is the volume of the solution divide by the volume of acid in it.

$\frac{0.4x+3.12}{12+x}=0.33 \\ 0.4x+3.12=0.33(12+x) \\ 0.4x+3.12=3.96+0.33x \\
0.07x=0.84 \\
x=12$

The answer is B.

2.
12 liters of 16% acid solution contain $16\% \times 12=0.16 \times 12=1.92$ liters of acid.
x liters of 40% acid solution contain $40\%x=0.4x$ liters of acid.
The volume of the third solution is $12+x$ , and the volume of acid in it is $0.4x+1.92$ . Its concentration is 32% or 0.32.

$\frac{0.4x+1.92}{12+x}=0.32 \\
0.4x+1.92=0.32(12+x) \\
0.4x+1.92=3.84+0.32x \\
0.08x=1.92 \\
x=24$

The answer is B.

3.
16 liters of 18% acidsolution contain $18\% \times 16=0.18 \times 16=2.88$ liters of acid.
x liters of 27% acid solution contain $27\%x=0.27x$ liters of acid.
The volume of the third solution is $16+x$ , and the volume of acid in it is $0.27x+2.88$ . Its concentration is 21% or 0.21.

$\frac{0.27x+2.88}{16+x}=0.21 \\
0.27x+2.88=0.21(16+x) \\
0.27x+2.88=3.36+0.21x \\
0.06x=0.48 \\
x=8$

The answer is A.

5 0

4 years ago

6. Laila ran 800 m before lunch, 1200 m after lunch,

Alecsey [184]

Answer:

2650

Step-by-step explanation:

all you need to do is add all them up together

6 0

3 years ago

Marcus jogged 3.5 miles on Monday, 3.8 miles on Tuesday, and 4.5 miles on Wednesday. If he jogged a total of 15 miles from Monda

nata0808 [166]

Answer:

He jogged a total of 3.2 miles on Thursday.

Step-by-step explanation:

Add the miles from each day together.

3.5+ 3.8+ 4.5=11.8

Subtract 11.8 from 15

15-11.8= 3.2

Therefore the answer is 3.2. Hopefully this was helpful!:)

3 0

3 years ago

Use the distributive property to fill the blanks. 3x(8-1)=(3x_)-(3x_)