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Romashka-Z-Leto [24]
3 years ago
8

Which ordered pair is the solution to the system of equations?

Mathematics
1 answer:
brilliants [131]3 years ago
3 0
X+y=-1
3x-y=21
add them equations

x+y=-1
<u>3x-y=21 +</u>
4x+0y=20

4x=20
divide by 4
x=5

x+y=-1
5+y=-1
minus 5 both sides
y=-6

(x,y)
(5,-6)

D is answer
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Elan Coil [88]
There both liner and parallel
8 0
3 years ago
What is the area of the right triangle with sides 10,26 and 24
solniwko [45]
Answer:

Area = 120

Step-by-step explanation:

Area = 1/2 bh

Area = 1/2 (10)(24)

Area = 1/2 (240)

Area = 120

The area of the right triangle is 120
3 0
3 years ago
Read 2 more answers
Jeremy has $1200 in spending money for the fall semester of college. He needs to purchase car insurance at $120 for 4 months, $2
abruzzese [7]

Answer:

Jeremy Will have more than just $200 to spend on Christmas presents.

Explanation :

He has a total of $1200.

He spends a $120 for car insurance. (1)

He needs to spend $25 a week for lunch. He has to do this for 16 weeks so 25*16 = $400. (2)

He needs to spend $20 a week for entertainment. For 16 weeks that'll be 20*16 = $320 (3)

adding (1) (2) and (3)

We get Jeremy's total spending will be $840. Jeremy has $1200.

1200-840 = $360

So Jeremy will have $360 to spend on Christmas present.

6 0
2 years ago
5 is a prime number of 2475 what are the other two numbers
ArbitrLikvidat [17]
2475=3^2\cdot5^2\cdot11

The two other prime factors are 3 and 11
6 0
3 years ago
Hey I really need this done asap I will mark brainliest and rate 5 stars 50 Points to who ever can get me the answers please and
zavuch27 [327]
                      MUSTARD MAN
1) 16y+0=0  Identity Property Of Addition
2) d*r=r*d     Commutive property of multiplication 
3) 27a*0=0   Identity Property of Addition
4) 16x+5y=5y+16x  Commutive property of Addition
5) r*1=r   Identity property of Addition
6) (5y+2)+14x=5y+(2+14x)   Associate property of Addition 
7) (m*n)*p=m*(n*p)  Associate Property of Multiplication
Please use the information you have to make sure these are RIGHT!!!! 
-GENERAL OUT
4 0
3 years ago
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