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3 years ago

42=7(z−3) solve for z

Mathematics

1 answer:

kotegsom [21]3 years ago

6 0

42 = 7z -21
42-21 = 21
21 / 7 = z
z = 3

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A jacket at the store is being offered at a 25% discount. If the original price of the jacket is x, which answer choice shows an

Fofino [41]

Answer:

0.75x

Step-by-step explanation:

Given that :

Discount rate= 25%

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Discounted price of jacket :

(100 - discount rate)% * original price

(100 - 25)% * x

75% * x

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3 years ago

A student invested 80% of her savings in the stock market. If she invested $5,200, what are her total savings in dollars?

Leokris [45]

One way to approach this is to know that $5200 is 80% of her savings, so if we divide 5200 by 8 we will get 10% of her savings. 5200/8 = $650.
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2 years ago

How do you solve this equation 6(x+3)-10=10 for x

Tresset [83]

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8 0

3 years ago

Equation of y-intercept -1 parallel y=-1/2x-4

Lerok [7]

For this case we have that by definition, the equation of a line in the slope-intersection form is given by:

$y = mx + b$

Where:

m: It's the slope

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According to the statement we have the following equation:

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The slope is:

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

By definition, if two lines are parallel then their slopes are equal. Thus, a parallel line will have slope $m = - \frac {1} {2}$ . Therefore, the equation will be of the form:

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Answer:

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3 0

3 years ago

Lashonda is going to rent a truck for one day. There are two companies she can choose from, and they have the following prices.

DENIUS [597]

Lashonda is going to rent a truck. For mileages greater than 375 miles, company A charges more.

Solution:

Given, Lashonda is going to rent a truck for one day.

There are two companies she can choose from, and they have the following prices.

Company A has no initial fee but charges 60 cents for every mile driven.

Company B charges an initial fee of $75 and an additional 40 cents for every mile driven.

We have to find for what mileages will Company A charge more than Company B?

Let us use "m" for the number of miles driven,

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6 0

3 years ago