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NeX [460]
2 years ago
13

Solve for substitution x+2y=-1 2x+3y=0

Mathematics
1 answer:
kipiarov [429]2 years ago
7 0
Hope my document helped! :)

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liraira [26]
SA=6A2 so 6 times 49 squared is 294mmsquared
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LM is the diameter of OP. N L *not drawn to scale IfmXLMN = 48° what is mZNLM? A. 24° B. 42° C. 48° D. 66° E. 84​
Sindrei [870]

Answer:

c

Step-by-step explanation:

3 0
3 years ago
Can someone that's very good at math please help me?
gtnhenbr [62]

Answer:

35 :

t = 6.25 years

(about 6 years 3 months)

Equation:

t = (1/r)(A/P - 1)

Calculation:

First, converting R percent to r a decimal

r = R/100 = 4%/100 = 0.04 per year,

then, solving our equation

t = (1/0.04)((2500/2000) - 1) = 6.25

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The time required to get a total amount, principal plus interest, of $2,500.00 from simple interest on a principal of $2,000.00 at an interest rate of 4% per year is 6.25 years (about 6 years 3 months).

36:

The two distances are the same (out and back), so set them equal.

That is done by having a (rate)(time) equal a (rate)(time).

One time is “x” and the other is “4.8-x.”

One rate is 460 and the other is 500.

460 x = 500 (4.8 -x)

460 x = 2400 - 500x

900 x = 2400

x = 2.5 hours for the slower plane.

4.8- x = 2.3 hours for the faster plane.

8 0
3 years ago
A class of 28 students has 12 girls. What is the ratio of girls to boys
DochEvi [55]

Answer:

3 girls for every 4 boys

Step-by-step explanation:

Number of girls = 12

Number of boys = 28 - 12 = 16

The ratio of girls / boys = 12/16 = 3/4

8 0
3 years ago
On his first three tests, Shaun scored 88, 98, and 79. What score must he get on his fourth test to have an average (mean) of 80
solniwko [45]

Answer:

Step-by-step explanation:

let score in fourth test=x

88+98+79+x=80×4

265+x=320

x=320-265=55

7 0
3 years ago
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