MATHEMATICS MIDDLE SCHOOL

Can some one plz Solve this. 4 - 2x = 10

Answers

Answer 1
Answer:

Answer:

x = -3

Step-by-step explanation:

Given the expression

4 - 2x = 10

Using the subtraction property of equality

We have ,

-2x = 10 - 4

OR subtract four from both sides of the equation

4-4 - 2x = 10 - 4

-2x = 6

Now, divide both sides by -2 to get the unknown x.

We have -2x/-2 = 6/-2

Therefore x = -3

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The product of 2 numbers is 20. Their difference is 8. What are the two numbers?

Answers

Answer:

the value of x is 10 and y is 2

Step-by-step explanation:

(x)(y) = 20 \: \: \: \: ..(1) \n x - y = 8 \: \: \: \: \: ..(2) \n x = 8 + y \n (8 + y)(y) = 20 \n 8y + y {}^(2) = 20 \n y {}^(2) + 8y = 20 \n y {}^(2) + 8y - 20 = 0 \n y {}^(2) + 10y - 2y - 20 = 0 \n y(y + 10) - 2(y + 10) = 0 \n (y - 2)(y + 10) \n y - 2 = 0 \: \: \: \:o r \: \: y + 10 = 0 \n y = 2

y = - 10 \n not \: \: \: \: \: possible

now,

put y = 2 in (2)

x - 2 = 8 \n x = 10

Verification

(10)(2) = 20 \n 10 - 2 = 8

Verified

Answer:

10 and 2

Step-by-step explanation:

10 x 2 = 20. If you subtract 10 by 2, it equals 8. Hope this helped!

What number is 65% of 98?

Answers

What is 65% of 98? in mathematical terms it means:
X= 0.65*98
multiply 0.65 by 98, that equals 63.7

Answer:

63.7

Step-by-step explanation:

x=0.65*98

it costs $15 per month for membership at a baseball club. Members pay $5 for game tickets. Write an expression for the cost of 1 month, including the membership fee, for a person who attends g games in month.

Answers

15+5G= total per month

explanation- your (15) is your constant variable. It will never change. The (5) will change depending on how many games you go to.

15+5G= Total
Y=15+5gY is the total cost in one month. 15 is the cost of the membership and 5 is the amount you paid to see the game. G is the variable for the amount of games. You multiple the g by 5 to get the total cost of games per a month that you went and saw. Than you add the base cost of 15 or your starting point. And you get your total cost.

Anzelm wants to burn 540 calories while jogging. Jogging burns about 12 calories per minute. When Anzelm goes jogging, he usually plans to stop and rest for about 5 minutes.

Answers

Answer:he will use 45 minutes to burn 540 calories . he spend a total of 50 minutes ie including 5 minutes of rest.

Step-by-step explanation: 1 minute burns 12 calories

Therefore 540÷12 = 45 minutes plus 5 minutes of rest = 50 minutes.

which of the following amount is greater than 2 gallons ? select all that apply. (A)5 quarts, 2 pints (B) 1 gallon, 3 quarts (C) 9 quarts (D) 40 cups (E) 1 gallon , 9 pints

Answers

9 quarts, 40 cups and 1 gallon , 9 pints are  greater than 2 gallons

What is Unit of Measurement?

A unit of measurement is a definite magnitude of a quantity, defined and adopted by convention or by law, that is used as a standard for measurement of the same kind of quantity.

We need to find among the given options which are  greater than 2 gallons

We know that 1 gallon = 4 quarts, 1 gallon = 8 pints and 1 gallon = 16 cups

A. 5 quarts 2 pints

5/4 gallons + 5/8 gallons

= 1.875 gal

1.875<2

B. 1 gallon 3 quarts

= 1 gallon + 3/4 gallon

= 1.75 gallon

1.75<2

C. 9 quarts

= 9/4 gallons

= 2.25 gal

2.25>2

D. 40 cups

= 40/16 gallon

= 2.5 gallon

2.5>2

E. 1 gallon 9 pints

= 1 gallon + 9/8 gallon

= 2.125 gallon

2.125>2

Hence, 9 quarts, 40 cups and 1 gallon , 9 pints are  greater than 2 gallons

To learn more on Unit of Measurement click:

brainly.com/question/15402847

#SPJ2
1 gallon = 4 quarts
1 gallon = 8 pints
1 gallon = 16 cups

A. 5 quarts 2 pints = 5/4 gal + 5/8 gal = 1.875 gal (Less than 2 gallons)
B. 1 gallon 3 quarts = 1 gal + 3/4 gal = 1.75 gal (Less than 2 gallons)
C. 9 quarts = 9/4 gal = 2.25 gal (Greater than 2 gallons)
D. 40 cups = 40/16 gal = 2.5 gal (Greater than 2 gallons)
E. 1 gallon 9 pints = 1 gal + 9/8 gal = 2.125 gal (Greater than 2 gallons)

Answer: Choices C, D, E

The side lengths of the figure below are given in centimeters.If the perimeter of this figure is 78 cm, what is the value of x?

Answers

Answer:

x=-12 or 6

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