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lilavasa [31]
3 years ago
8

PLEASE I NEEED THIS FAST!!

Mathematics
2 answers:
jek_recluse [69]3 years ago
8 0
Supplementary means they are equal to 180 so combine them and set it equal to 180.

7x - 2 = 180

Add 2

7x = 182

Divide by 7

x = 26

Gekata [30.6K]3 years ago
3 0

4x + 3 + 3x - 5 = 180

7x = 182

x = 26

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Melons cost $20 pet Crate, and apples cost $8 per create. an order comes in for a total of 48 crates for $420. what was the numb
Alika [10]

Answer:

The number of melon was 3 and the number of apples was 45.

Step-by-step explanation:

1. Melons cost $20 per crate and apples cost $8 per create. If the total was 48 crates for $420, you can make the following system of equations, where x is the number of melons and y is the number of apples:

\left \{ {{x+y=48} \atop {20x+8y=420}} \right.

2. By applying the Method of substitution, you can solve for y in the first equation and substitute it into the second one to find x. Then, you can substitute the value of x into the first equation to find y:

y=48-x

20x+8(48-x)=420\\20x+384-8x=420\\12x=36\\x=3

3+y=48\\y=45


4 0
4 years ago
How to solve X^4-19x^2+48=0
ZanzabumX [31]
Two numbers that add up to -19 and multiply to 48 are -16 and -3:

(x^4-19x^2+48)=0\\(x^2-16)(x^2-3)=0\\(x+4)(x-4)(x^2-3)=0

So, the solutions come from each parentheses:  x+4=0, x-4=0, and x^2-3=0.

x+4=0
x = -4

x-4=0
x = 4

x^2-3=0
x^2 = 3
x = +/- √3

So, the solutions are -4, -√3, √3, and 4.
4 0
3 years ago
Please help and will give brainliest.
valkas [14]

Answer:

The battle that resulted in both a Confederate victory and the death of General “Stonewall” Jackson was

Step-by-step explanation:

The battle that resulted in both a Confederate victory and the death of General “Stonewall” Jackson was

6 0
3 years ago
Special right triangles
fiasKO [112]

Answer:

c

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
GEOMETRY HELP) Triangle ABC is similar to triangle PQR. <br><br><br><br> Which equation is correct?
kirill115 [55]
Hello,

We must find the corresponding points: (using angles)

A-->P
B-->Q
C-->R

AB/PQ=BC/QR=AC/PR ===> c/r=a/p=b/q

Answer C




3 0
3 years ago
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