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2 years ago

What is 0.2 [5x + (–0.3)] + (–0.5)(–1.1x + 4.2) simplified?

Mathematics

2 answers:

slamgirl [31]2 years ago

8 0

Answer:

1.55

Step-by-step explanation:

It is on edgenuity

Bingel [31]2 years ago

6 0

Answer:

1.55x - 2.16

Step-by-step explanation:

To simplify the expression, we expand the brackets while taking note of the signs:

0.2 [5x + (–0.3)] + (–0.5)(–1.1x + 4.2)

(0.2 * 5x) + (0.2 * -0.3) + (-0.5 * -1.1x) + (-0.5 * 4.2)

x - 0.06 + 0.55x - 2.1

Collect like terms:

x + 0.55x - 0.06 - 2.1

=> 1.55x - 2.16

This is the simplified expression.

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A software store has put some of its inventory on sale. Games are marked down by 15%, and security programs are marked down by 1

Katyanochek1 [597]

Answer:

Option D. $\$11.34$

Step-by-step explanation:

Let

x -----> the original price of one game

y ----> the original price of one security programs

Remember that

$100\%-15\%=85\%=85\100=0.85$

$100\%-18\%=82\%=82\100=0.82$

The total pay with discount is

$\$35.70+\$22.96=\$58.66$

we have that

$0.85(2x)=35.70\\1.70x=35.70\\x=\$21$

$0.82y=22.96\\y=\$28$

Find the total pay without discount

$2x+y=2(21)+28=\$70$

The amount saved is the difference

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2 years ago

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Analyze the diagram. What is the composition of transformations that was applied to map WXYZ to W''X''Y''Z''? The first transfor

Zigmanuir [339]

Answer:

The first transformation was a rotation rotation about point A

The second transformation was a reflection across line M

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2 years ago

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Rodolpho uses a prepaid gas card to spend $35 each week for gas. After the first week, he has $140 left on the card. After every

noname [10]

I got this T_T y=175-35t

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2 years ago

The amount of water that the girls on the basketball and soccer teams drink during one practice session is recorded in the dot p

Radda [10]

Answer:

Step-by-step explanation:

We have two dot plots, one for the Basketball Team and one for the Soccer Team.

Notice that there are 16 girls in the Basketball Team and 16 girls in the Soccer Team.

Basically, the median is between the 8th and 9th term in each data set. Specifically, is the mean between them.

<h3>For Basketball Team</h3>

$m_{basketball} =\frac{32+32}{2}=32$

Because the 8th and 9th term are both equal to 32.

<h3>For Soccer Team</h3>

$m_{soccer}=\frac{64+64}{2}=64$

Because the 8th and 9th term are both equal to 64.

If we subtract them to find the difference, it would be

$\Delta m=64-32=32$

Basically, the Soccer Team drank 32 more ounces of water than the Basketball Team.

Therefore, the right answer is B, that's the closest one.

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2 years ago

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What are the solution(s) to the quadratic equation 50 – x2 = 0? x = ±2Plus or minus 2 StartRoot 5 EndRoot x = ±6Plus or minus 6

Serga [27]

Question:

What are the solution(s) to the quadratic equation 50 – x2 = 0?

A) x = ±2Plus or minus 2 StartRoot 5 EndRoot

B) x = ±6Plus or minus 6 StartRoot 3 EndRoot

C) x = ±5Plus or minus 5 StartRoot 2 EndRoot

D) no real solution

Answer:

C) x = ±5Plus or minus 5 StartRoot 2 EndRoot

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2 years ago

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