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3 years ago

Can you guys answer this question ASAP, thanks will give brainliest

Mathematics

2 answers:

Mumz [18]3 years ago

6 0

Answer:

An apple costs $2.25. A mango costs $1.25.

Step-by-step explanation:

Let a = price of 1 apple.

Let m = price of 1 mango.

Cameron:

4 apples + 7 mangoes ----> total $17.75

4a + 7m = 17.75

Gavin:

2 apples + 5 mangoes ----> total $10.75

2a + 5m = 10.75

We have a system of 2 equations in 2 unknowns.

4a + 7m = 17.75

2a + 5m = 10.75

We can use the elimination method to eliminate the variable <em>a</em>. Rewrite the first equation. Multiply both sides of the second equation by -2 and write below it. Then add the equations.

4a + 7m = 17.75

(+) -4a - 10m = -21.5

---------------------------------

-3m = -3.75

Divide both sides by -3.

m = 1.25

<em>A mango costs $1.25.</em>

Now we use the first equation and substitute 1.25 for <em>m</em> and solve for <em>a</em>.

4a + 7m = 17.75

4a + 7(1.25) = 17.75

4a + 8.75 = 17.75

4a = 9

a = 2.25

<em>An apple costs $2.25.</em>

Answer: An apple costs $2.25. A mango costs $1.25.

galina1969 [7]3 years ago

4 0

Answer:

2.25 ; 1.25

Step-by-step explanation:

4A + 7M = 17.75

2A + 5M = 10.75

2A = 10.75 - 5M

4A = 21.5 - 10M

21.5 - 10M + 7M = 17.75

3.75 = 3M

M = 1.25

4A = 21.5 - 10(1.25)

4A = 9

A = 2.25

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3 years ago

What is the smaller number -1, 3, 7, 9, or 11.

Vsevolod [243]

Hey there!

<h2>ANSWER: $-1$ </h2><h2>EXPLANATION:</h2>

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Hope this helps!

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3 years ago

13. The outboard engine on Steve's boat uses a fuel-to-oil mixture in a 50:1 ratio. If Steve puts 2.5 gallons of fuel in the tan

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3 years ago

Are triangles DEF and LNM similar if DF = 8 and LM = 4?

Komok [63]

We Cannot conclude that triangles DEF and LNM are similar if DF = 8 and LM = 4.

<u>Solution:</u>

Given that for two triangle DEF and LNM, DE = 8 and LM = 4.

To say that two triangles are similar the provided information is not complete.

Two triangles DEF and LNM , will be similar if there corresponding sides are in ratio which means

$\frac{\mathrm{DE}}{\mathrm{LM}}=\frac{\mathrm{EF}}{\mathrm{NM}}=\frac{\mathrm{EF}}{\mathrm{NM}}$

But we have only information of $\frac{\mathrm{DE}}{\mathrm{LM}}=\frac{8}{4}=2$

But do not have any information regarding two remaining ratios that are $\frac{\mathrm{EF}}{\mathrm{NM}} \text { and } \frac{\mathrm{EF}}{\mathrm{NM}}$

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4 years ago

A cello cost $1500, with a down payment of 1/6 of the total cost. How much is left to pay, in dollars, after the down payment ha

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1/6=20
6/2=3
So, 1500-300=1200
The answer is B.

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4 years ago