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attashe74 [19]
4 years ago
12

Expand the expression: -5(4-7c)​

Mathematics
2 answers:
Ronch [10]4 years ago
5 0

Answer:

-20 + 35c

Step-by-step explanation:

Distribute the -5 in the equation.

V125BC [204]4 years ago
4 0
The express-5(4-7c) is an expression where u have to distribute to find the answer so the answer is 20-35c
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Convert the following liquid measures.
Naddik [55]

Answer:

a) 40 pints b) 64 ounces c) 46.5 quarts d) 52 cups e) 23 tablespoons f) 7 gallons g) 108 teaspoons h) 384 fluid ounces

Step-by-step explanation:

<u>a. 5 gallons to pints</u>

1 pint = 0.125 gallons

x pint = 5 gallons

<em>Cross multiply</em>

0.125x = 5

x = 40 pints

<u>b. 128 tablespoons to fluid ounces</u>

1 ounce = 2 tablespoon

x ounce = 128 tablespoons

<em>Cross multiply</em>

2x = 128

x = 64 ounces

<u>c. 93 pints to quarts</u>

1 quart = 2 pint

x quart = 93 pints

<em>Cross multiply</em>

2x = 93

x = 46.5 quarts

<u>d. 13 quarts to cups</u>

1 cup = 0.25 quart

x cup = 13 quarts

<em>Cross multiply</em>

0.25x = 13

x = 52 cups

<u>e. 69 teaspoons to tablespoons</u>

1 tablespoon = 3 teaspoons

x tablespoons = 69 teaspoons

<em>Cross multiply</em>

3x = 69

x = 23 tablespoons

<u>f. 112 cups to gallons</u>

1 cup = 0.0625 gallons

112 cups = x gallons

<em>Cross multiply</em>

x = 112 x 0.0625

x = 7 gallons

<u>g. 18 fluid ounces to teaspoons</u>

1 teaspoon = 0.166667 ounces

x teaspoon = 18 fluid ounces

<em>Cross multiply</em>

0.166667x = 18

x = 108 teaspoons

<u>h. 3 gallons to fluid ounces</u>

1 gallon = 128 fluid ounces

3 gallons = x fluid ounces

<em>Cross multiply</em>

x = 128 x 3

x = 384 fluid ounces

!!

5 0
3 years ago
Read 2 more answers
a student gets 86 problems on test correct and gets a grade of 98%. how many problems were on the test?
sashaice [31]
You could set up a proportion 

86/x = 98/100

Then solve for x, I'll do it by cross-multiplying. 

86 times 100 divided by 98 = 87.755102

87-88 problems 

5 0
3 years ago
Help! What is the reciprocal of 5 3/5 ?
Ksivusya [100]

the recipocal is 0.17857142857

3 0
3 years ago
Read 2 more answers
The rabbit population in a certain area is 200% of last years population there are 900 rabbits this year how many were there las
Liula [17]
This year there are 900 rabbits which represents 200% of last year's population, means that last year the number of rabbits was:
 x = 900 (100/200) = 450 rabbits.
 The mathematical expression can be derived by a simple rule of three.
 So, for last year the population was 450 rabbits.
3 0
3 years ago
2. If y has a value of 4, give the following equation, what is the value of x? y 2<br> = 5x
myrzilka [38]

Answer:

3.2

Step-by-step explanation:

I'm not totally sure what you mean. I'm reading it as y² = 5x

So let y = 4

4² = 5x            

16 = 5x                    Divide by 5

16/5 = x

3.2 =  x

7 0
3 years ago
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