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3 years ago

PLEASE EASY HELP*****

Mathematics

2 answers:

frez [133]3 years ago

6 0

Answer:

Step-by-step explanation:

Multiply through by x+5

2(x + 1) = x + 5 - 1 Combine like terms

2x + 2 = x + 4 Subtract 2 from both sides.

2x = x + 4 - 2

2x = x + 2 Subtract x from both sides.

2x - x = 2 Combine

x = 2

tatyana61 [14]3 years ago

4 0

The answer is B okau

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What is the value of the expression f(-3) for f(x)=9+12x

IRINA_888 [86]

The value for the expression f(-3) for f(x)=9+12x is -27.

f(-3)=9+12(-3)
f(-3)=9-36
f(-3)=-27

6 0

3 years ago

Cristina, a bakery owner, plans to makes 12 brownies for each person at an event. The letter "p" represents the number of people

Whitepunk [10]

Answer:

12p

Step-by-step explanation:

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2 years ago

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Alan is 5 years older than Bob. Bob is twice as old as Cindy. All their ages add up to 20. What are their ages?

Llana [10]

We can use a variable equation to solve this. Let A represent alan's age, B represent bob's age, and C represent Cindy's age. So Bob's age would be Alan's age - 5, or a -5 = B. Then Bob's age would be double Cindy's age, so that means 2 multiplied by Cindy's age = Bob's age, or 2C = B. Your two equations are:

A - 5 = B
2C = B

Also a third equation that helps is A + B + C = 20.

Finally, here are the ages.
Alan = 11 years old
Bob = 6 years old
Cindy = 3 years old.

PS: Sorry, I'm not that good at explaining things, but here are the answers

6 0

3 years ago

For each pair of points below, think about the line that joins them. For which pairs is the line parallel to the y-axis? Circle

gogolik [260]

Answer:

Option B.

Step-by-step explanation:

If two lines are parallel then their slopes are always same.

Following this rule we can find the slope by the given pairs of coordinates of the options.

If the slope of the line is same as the slope of y axis then the line passing through these points will be parallel to the y axis.

Slope of y - axis = ∞

Option A). Slope = $\frac{y-y'}{x-x'}$

= $\frac{24-8.5}{3.22-3.2}$

= $\frac{15.5}{0.02}$

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Therefore, line passing through points (3.2, 8.5) and (3.22, 24) is not parallel to y axis.

Option B). Slope of the line passing through $(\frac{40}{3},\frac{14}{3})$ and $(\frac{40}{3},7)$ will be

= $\frac{\frac{14}{3}-7}{\frac{40}{3}-\frac{40}{3}}$

= ∞

Therefore, line passing though these points is parallel to the y axis.

Option C). Slope of the line passing through $(2.9,5.4)$ and (7.2, 5.4)

= $\frac{5.4-5.4}{7.2-2.9}$

= 0

Therefore, slope of this line is not equal to the slope of y axis.

Option B. is the answer.

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3 years ago

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Reptile [31]

So subtract 55 from 35

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then, put -20 over 55

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the negative stands for decrease, so it's around 36% decrease

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3 years ago