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3 years ago

Express as a sum: 15–7

Mathematics

2 answers:

sergeinik [125]3 years ago

7 0

We are given 15-7 here and we have to express it as sum.

Let us first understand the property to be use here.

We can write (a-b) as (a+(-b))

For example:

If we have 7-2, we can rewrite it as 7+(-2)

and then we can combine them to get 5

Now let us use the above property for our question,

We are given,

15-7

rewriting it as addition,

15+(-7)

+ and - on multiplication will be (-)

so +(-7) will remain -7 only

Answer: 15-7 = 15+(-7)

kirill115 [55]3 years ago

5 0

-7+15. this is what i think it is.

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Step-by-step explanation:

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2 years ago

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Juli2301 [7.4K]

Answer:

10 edges

Step-by-step explanation:

we know that

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$V - E + F = 2$

in this problem we have

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2 years ago

Pineapples cost $2.50 each and mangos cost $1.50 each. Tim purchased 15 pieces of fruit for $29.50. How many pineapples and how

kotykmax [81]

We can create equations to solve this.

2.50p + 1.50m = 29.50
p + m = 15

Solve for a variable in the 2nd equation and use the substitution method to solve.

p + m = 15

Subtract p to both sides:

m = -p + 15

Plug in -p + 15 for m in the first equation.

2.50p + 1.50(-p + 15) = 29.50

Distribute:

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Katena32 [7]

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