3 years ago

What's 4x+2y=10 X-y=13

Mathematics

1 answer:

vampirchik [111]3 years ago

4 0

X=y+13 then put in above

4(y+13)+2y=10
4y+52+2y=10

6y=-42

divide by 6
y=-7

Now put in X=y+13
x=-7+13
x=6

You might be interested in

Simplify 4(b-6)+19 ?

Digiron [165]

Answer:

4b -5

Step-by-step explanation:

Perform the indicated multiplication first: 4b - 24 + 19. Next, combine like terms, obtaining 4b -5 (answer)

4 0

3 years ago

A bus travels 36 miles in 45 minutes. How many miles will the bus travel in 60 minutes at this rate. Show a ratio.

ankoles [38]

A rate is a special ratio in which the two terms are in different units. A rate is a little bit different than the ratio, it is a special ratio. For this case, the rate would have units of miles per minutes. We calculate as follows:

rate = 36 miles / 45 min = 0.8 miles per min
distance traveled = 0.8 miles per min ( 60 min ) = 48 miles

3 0

3 years ago

Question 3

matrenka [14]

Answer:

about 5 boxes

Step-by-step explanation:

2 *40/15 Please give brainliest

6 0

2 years ago

Read 2 more answers

Happy book lovers day

Temka [501]

Answer:

thank you

Step-by-step explanation:

6 0

3 years ago

Find the sum of the first 8 terms in the sequence 2 8 32 128

Zigmanuir [339]

the sequence is in multiples of 4 (2*4=8, 8*4=32, 32*4=128)

so 128*4=512, 512*4=2048, 2048*4=8192 & 8192*4=32768

2+8+32+128+512+2048+8192+32768=43690

4 0

3 years ago