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3 years ago

What is 6 with a 30% increase

Mathematics

2 answers:

zhannawk [14.2K]3 years ago

6 0

Answer:

70 increased by 6 percent = 74.2

Step-by-step explanation:

NeX [460]3 years ago

3 0

7.8, 30% of 6 is 1.8 so 6+1.8= 7.8

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How many gallons of 60% antifreeze solution must be mixed with 70 gallons of 20% antifreeze to get a mixture that is 50% antifre

Papessa [141]

Answer:

Answer: Add 315 gallons of 70% antifreeze to 90 gallons of 25% antifreeze to make a 60% mixture.

You need to end up a mixture that is 60% antifreeze.

You have 90 gallons of 25% antifreeze, which means it has .25*90 = 22.5 gallons of pure antifreeze mixed with a solvent (probably water).

You will add 'x' gallons of 70% antifreeze to make the 60% mixture.

So, at the conclusion, you will have (90+x) gallons 60% 'pure' antifreeze. That can be shown with the equation:

.25*90 + .7*x = .6*(90+x)

Multiply by 100 to eliminate fractions.

25*90 + 70x = 60(90 +x)

2250 + 70x = 5400 + 60x

10x = 5400 -2250

10x = 3150

x = 315 gallons of 70% antifreeze.

How much will you end up having on hand?

90 + 315 = 405 gallons

If it is 60% antifreeze, how much 'pure' antifreeze will be in the mixture?

.6*405 = 243

In the original 90 gallons, you have 22.5 gallons of pure antifreeze.

In the additional 315 gallons, you have .7*315 = 220.5 gallons.

22.5+220.5 = 243 gallons

Step-by-step explanation:

5 0

4 years ago

Heather works as a waitress at her family’s restaurant. She works 2 hours every morning during the breakfast shift and returns t

Phoenix [80]

Answer:

14 hours each evening : )

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3 years ago

Which function has a range of all real numbers greater than or equal to -4?

max2010maxim [7]

Answer:

C. $f(x)=(x+1)^2-4$

Step-by-step explanation:

A. the graph is a straight line with slope 1. It goes up/down infinitely far so the range is all real numbers. Not A!

B. The graph is a straight line with slope -4, so, like the function in A, the range is all real numbers. Not B!

D. The graph is an absolute value function y = |x|, reflected over the x-axis, shifted right 3 units, then shifted down 4 units. So the graph starts witha "vee" shape opening up, becomes a vee opening <u>down</u>, then ultimately gets shifted down 4 units. The range is all real numbers less than or equal to -4.

See the attached graphs. image2 is the function in answer choice D.

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3 years ago

How to write Q={1,2,3,5} in set builder form?<br>

blagie [28]

Answer:

{x:x is a natural number less than 6}

Step-by-step explanation:

Set builder is a type of set where we have to represent any value inside a set

by using the variable x, v, b, a, c etc.

Eg A={1,2,3,4}

For eg {a: a is a natural number less than 5}

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2 years ago

Gina wants to ship 3 books thata weigh 2 7/16 pounds, 1 7/8 pounds and 1/2 pound. the maximum weight she can ship is 6 pounds. e

Pie

Yes she can because after estimating, the total amount the books weigh is ~5lbs

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4 years ago