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4 years ago

52-8(ɳ-1) รѳʆѵɛ tɦiร Բѳʀ ɱɛ pʆɛɑรɛ

2 answers:

8 0

Let's simplify step-by-step.

52−8(n−1)

Distribute:

=52+(−8)(n)+(−8)(−1)

=52+−8n+8

Combine Like Terms:

=52+−8n+8

=(−8n)+(52+8)

=−8n+60

Answer:

=−8n+60

Cloud [144]4 years ago

8 0

52-8(n-1)=52-8n+8=60-8n

Answer: 52-8(n-1)=60-8n

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3x+8y=15 , 2x−8y=10

faltersainse [42]

I think is should be (5,0)

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3 years ago

Read 2 more answers

Lizzie has 30 coins that total $4.80. All of her coins are dimes, D, and quarters, Q. Algebraically determine how many of each t

Gnom [1K]

Lizzie has 18 dimes and 12 quarters

Solution:

Let "d" be the number of dimes

Let "q" be the number of quarters

We know that,

value of 1 dime = $ 0.10

value of 1 quarter = $ 0.25

Given that LIzzie has 30 coins

number of dimes + number of quarters = 30

d + q = 30 ---- eqn 1

Also given that the coins total $ 4.80

number of dimes x value of 1 dime + number of quarters x value of 1 quarter = 4.80

$d \times 0.10 + q \times 0.25 = 4.80$

0.1d + 0.25q = 4.8 ------ eqn 2

Let us solve eqn 1 and eqn 2

From eqn 1,

d = 30 - q ---- eqn 3

Substitute eqn 3 in eqn 2

0.1(30 - q) + 0.25q = 4.8

3 - 0.1q + 0.25q = 4.8

0.15q = 1.8

From eqn 3,

d = 30 - 12

Thus she has 18 dimes and 12 quarters

6 0

4 years ago

Can anyone help me with 9th-grade geometry?

katovenus [111]

Answer:

See below.

Step-by-step explanation:

From the given info the 2 triangles are isosceles with AE = FR and ET = RP because the 2 sets of base angles are equal.

As the base angles are congruent m < E = m < R.

So the are 2 triangles are congruent by SAS, ASA and AAS.

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3 years ago

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Answer:3003

Step-by-step explanation:

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4 years ago

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Answer:

Step-by-step explanation:

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3 years ago