3 years ago

Twice a number is equal to 35 more than seven times the number. Find the number

Mathematics

1 answer:

amm18123 years ago

8 0

number - n

Twice a number - 2n

Seven times the number - 7n

2n = 7n +35

7n-2n = -35

5n = -35

n = - 7

Check:

2(-7) = 7(-7) +35

-14 = -49 + 35

-14 = -14 True

The number is (- 7).

You might be interested in

1. Mrs. Rodger got a weekly raise of $145. If she gets paid every other week, write an integer describing how the raise will aff

nasty-shy [4]

Answer:

Increase by $145

Step-by-step explanation:

= $ (x + 145 + 145)

= $ (x + 290)

5 0

3 years ago

I'm giving brainliest to best answer

Natali5045456 [20]

Answer:

2) 62.5 wpm

3) 12.7 miles per gallon

4)18 commercials per hour

5) 22.9 ounces per dollar

Step-by-step explanation:

2) 500 words / 8 minutes = 62.5 words per 1 minute

3) 216 miles / 17 gallons = 12.7 miles per gallon

4) 36 commercials / 2 hours = 18 commercials per hour

5) 64 oz / $2.79 = 22.9 oz per $1

3 0

3 years ago

The difference of the squares of two positive consecutive even integers is 84. Find the integers.

ziro4ka [17]

Answer:

The two integers are 20 and 22.

Step-by-step explanation:

Let x be the first integer.

$(x+2)^{2}-x^{2} = 84\\x^{2} +4x+4-x^{2} = 84\\4x = 80\\x = 20$

3 0

2 years ago

2/3 x-4 = -2 A -3 B -4 C -9 D 3

Luden [163]

Answer:

i think its d

Step-by-step explanation:

cause i solved it and got the same answer

5 0

2 years ago

Mrs. Garcia is making bread using a total of 400 grams of gluten-free flour. The recipe calls

goldfiish [28.3K]

Answer:

280 grams of almond flour.

Step-by-step explanation:

She needs 70% of the flour to be almond flour

70/100*400 = 280

7 0

3 years ago