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White raven [17]
3 years ago
5

Help with these please and highly appreciate the help !!!!!!!

Mathematics
1 answer:
k0ka [10]3 years ago
7 0
Which one will we start with? I'll explain 21. multiply it out and the clean it up. you should end up with 140=A if I'm correct.
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Two grapefruits and three oranges cost $1.95. Three grapefruits and two oranges cost $2.05.
geniusboy [140]

Answer:

  • one orange costs $0.35  and  one grapefruit costs $0.45

Step-by-step explanation:

<em>let grapefruits be g , let oranges be o</em>

so first equation:

→2g + 3o  = $1.95

→g = ($1.95 - 3o)/2

so second equation:

→ 3g + 2o = $2.05

→ g = ($2.05 - 2o)/3

Solving simultaneously:

→ ($2.05 - 2o)/3 = ($1.95 - 3o)/2

→ 2($2.05 - 2o) = 3($1.95 - 3o)

→ 4.1 - 4o = 5.85 - 9o

→ - 4o + 9o = 5.85 - 4.1

→ 5o = 1.75

→ o = $0.35

Therefore one orange costs $0.35

Then one grapefruit costs g → ($1.95 - 3o)/2

                                               → g = ($1.95 - 3(0.35))/2

                                               → g = 0.45

Therefore one grapefruit costs $0.45

4 0
2 years ago
What is the whole nunnery 13,260,000in expanded form?
Katyanochek1 [597]

Answer:

13,000,000+200,000+60,000

Step-by-step explanation:

7 0
3 years ago
-14.25 + -3.78 - (-5.78) - 3.4 A) -19.65 B) -15.65 C) 1.29 D) 27.21
lutik1710 [3]
The answer is B. -15.65
4 0
3 years ago
What is twenty plus x plus forty five plus ninety equal
Leya [2.2K]

Answer:

20+x+45+90= <u>x + 155</u>

6 0
3 years ago
Read 2 more answers
Which of the following is both a perfect square and a perfect cube?
Mice21 [21]
Answer is 64

64 = 8²  ← <span>perfect square
64 = 4</span>³  ← <span>perfect cube</span>
7 0
3 years ago
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