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Bond [772]
3 years ago
7

What is the solution of the system of equations? y= -2x+8 y= x-4

Mathematics
2 answers:
Taya2010 [7]3 years ago
7 0
X=4, y=0 my answer is too short but I'm to lazy to type the whole pr0cess
Alinara [238K]3 years ago
4 0
We can solve by substituting x-4 for y in the first equation.
x-4 = -2x+8
3x = 12
x = 4

Then plug in 4 for x in one of the equations.
y = 4-4
y = 0
OR
y = -2(4)+8
y = -8+8
y = 0

So the solution is (4,0)
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TB +/- Adj = ATB

6 0
3 years ago
In science class, the students observed 24 of the 300 frogs from the local aquarium. If 6 of the frogs observed had spots, how m
Alona [7]

Answer:

225 frogs

Step-by-step explanation:

Total population of frogs = 300 frogs.

Observed population of frogs = 24

6 of the 24 observed frogs had spots

Which means , the number of frogs that did not have spots = 24 - 6 = 18 frogs.

We were told to find how many of the total population can be predicted to NOT have spots. We would form a proportion.

If 24 frogs = 18 frogs with no spots

300 frogs = Y

Cross multiply

24Y = 300 × 18

Y = (300 × 18) ÷ 24

Y = 5400 ÷ 24

Y = 225 frogs.

This means out of 300 frogs, 225 frogs do not have spots.

Therefore, the total population that can be predicted to NOT have spots is 225 frogs.

the total population can be predicted to NOT have spots

3 0
2 years ago
If sin A = 8/17 and tan B = 40/9 and angles A and B are in Quadrant I, find the value of * tan(A + B) .
nirvana33 [79]

Step-by-step explanation:

tanA=8/15 and tan B=40/9

tan(A+B)=(tanA+tanB)/1-tanAtanB

(8/15+40/9)/1-(8/15×40/9)

=-672/185

3 0
2 years ago
A construction company buys a certain number of boxes of nails depending on how many houses they plan to build in a year. They h
rusak2 [61]

Answer:

Step-by-step explanation:

43

I dont exactly know if this is correct sorry if its wrong

7 0
1 year ago
HElP- also if u r wondering teh answer is NOT 24
sveticcg [70]
C. 96 sq ft hope this helps
6 0
2 years ago
Read 2 more answers
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