dango90 dango90

14-12-2014
Mathematics

Answered

PLEASE HELP ME! :(
1. Twice a number increased by 12 is equal to 3 times the number minus 31. Find the number.
2. Twelve decreased by twice a number is -7. What is the number?
3. Three consecutive intergers have a sum of -33. What are the intergers?
4. The sum of 4 times a number and 14 is 16. What is the number?
5. The sum of 3 times a number and 17 is 5. What is the number?

Answer :

Winkdude Winkdude

14-12-2014

Here, I'll do the first one for you.
When they are talking about a number, use "x".
Since it says twice a number, you say 2x. Or 3x for three times the number
2x+12=3x-31
Then use algebra to find x. Get the numbers on one side and all the x's on the other.
2x+12+31=3x-31+31
2x+43-2x=3x-2x
x=43

Now do the rest on your own!

Answer Link

Other Questions

Calculate [tex]$31 \times (10 + 2)$[/tex] using the distributive law.

What is the common denominator of [tex]\frac{1}{a}+\frac{1}{b}[/tex] in the complex fraction [tex]\frac{\frac{1}{a}-\frac{1}{b}}{\frac{1}{a}+\frac{1}{b}}[/tex]?

The magnitude of the electric force between two point charges separated by a distance of 44.1 cm is 9.50 μN. If the charges are moved so that they are separated

WEARING THE GUEST'S SHOESThroughout your shift, it's important to think like a guest and be on the lookout for anything that might disrupt the guest experience.

Read this sentence, and decide whether the underlined portion contains a mistake. If so, identify the best way to correct or improve the sentence by choosing th

What is the minimum internal temperature for cooking raw intact meat?

The benefits of organized sports include all of the following excepta. Cooperation.b. Competitiveness.c. Self - confidence.d. Leadership.Psychology

A __________ can be used for short-run process variables measurements. a. S-chart b. C-chart c. P-chart d. Delta chart e. All of the above

Statistics are similar to ______ in that they are often cited in passing to clarify or strengthen a speaker's point. Multiple choice question.1) visual narrativ

The _____ says we can identify with an individual, not an idea.a. Empathic mediumb. Sympathy telescopec. Empathy telescoped. Social medium

7. Passed in 1935, Roosevelt's most significant reform measure was the A. Fair Labor Standards Act. B. National Labor Relations Board. C. Wagner Act. D. Social

which of the following is not an issue from over urbanization

how many times does 8 go into 65

gas _____ fills its container? A.) partially. B.) most of the time. C.) sometimes. D.) completely.

how does natural selection produce adaptations in a species

List the integers between the square root of 13 and the square root of 50

Dorothy types 120 words a minute. how many does Dorothy type in 1.75 minutes?

the floor of a shed has an area of 96 square feet. the floor is in the shape of a rectangle whose length is 4 feet less than twice the width. find the length an

Which describes the properties reflection, absorption, and transmission when a light is shinning on the oval end of a silver spoon? A. It reflects some light,

Describe how the British arrival affected India. (1 point) a.India became a British colony with its economy dependent on Britain. b.India established a new mark