3 years ago

Add or Subtract to simplify

Mathematics

1 answer:

exis [7]3 years ago

5 0

Answer:

-5x^5 + 2x^3 - 6x should be your answer

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A roast beef sandwich costs $6.75. A customer buys multiple roast beef sandwiches. Write an equation that represents the situati

Anna007 [38]

Answer:

$\frac{80-19.25}{6.75} = x$

Step-by-step explanation:

Subtract $19.25 from the Amount Used for Payment ($80) to get the amount spent, then divide the amount of each sandwich to get the amount of sandwiches bought.

4 0

3 years ago

Please help again. i dont know how to solve this one either.

Oksana_A [137]

3 x 3 x 17 x oweueueueuee

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2 years ago

Read 2 more answers

Jenna and Heidi together have $60. Jenna has $9 more than twice Heidi’s amount. How much money does each have?

Marina86 [1]

Jenna has $43 and Heidi has $17.

Step-by-step explanation:

Total amount = $60

Let,

Amount of Jenna = x

Amount of Heidi = y

According to given statement;

x+y=60 Eqn 1

x=2y+9 Eqn 2

Putting value of Eqn 2 in Eqn 1;

$(2y+9)+y=60\\2y+9+y=60\\3y=60-9\\3y=51$

Dividing both sides by 3,

$\frac{3y}{3}=\frac{51}{3}\\y=17\\$

Putting y=17 in Eqn 2

$x=2(17)+9\\x=34+9\\x=43$

Jenna has $43 and Heidi has $17.

Keywords: linear equations, substitution method

Learn more about substitution method at:

#LearnwithBrainly

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4 years ago

a certain atore has a fax machine available for use by its customers. the store charges $2.30 to send the first page and $0.40 f

VikaD [51]

2.30 + 0.40(x - 1) < = 5.10
2.30 + 0.40x - 0.40 < = 5.10
1.90 + 0.40x < = 5.10
0.40x < = 5.10 - 1.90
0.40x < = 3.20
x < = 3.20 / 0.40
x < = 8 <=== 8 pages, at the most, can be faxed

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4 years ago

This is 7th grade math and answer ASAP. Tell me which answer choice in q.1. I will gave brainliest, thx, and 5 star if answered

PilotLPTM [1.2K]

P=S1+S2+S3
P=2.3x+14+2x-0.2x+15
P=4.1x+29
The answer is the first one
Hope this helps

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3 years ago