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4 years ago

What is the solution for this system of linear equations? {23x+4=y 4−2x=y

1 answer:

3 0

We can subsitute since
23x+4=y and
4-2x=y
therefor
23x+4=y=4-2x
so
23x+4=4-2x
minus 4 on both sides
23x=-2x
add 2x to both sides
25x=0
divide both sides by... uh oh
I guess x=0

sub
4-2(0)=y
4-0=y
4=y

the solution is (0,4)

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Stephanie has $152 in the bank she with drawl $20 then she deposits $84 write an addition expression to represent this situation

Paraphin [41]

152+(-20)+84=

236+(-20)=

236-20=

216

3 0

3 years ago

Can you help me with this math il give you 100 points

abruzzese [7]

I'd he happy to, But you forgot to post the question.

8 0

3 years ago

Show work on this pls

stepan [7]

Answer:

6.29

Step-by-step explanation:

so you know that the unknown side which is 7x + 27 equals 71.

You can begin by subtracting 27 from 71 which will give you 44.

you then know that 44 = 7x

then you just have to do 44 divided by 7 to find x which isss...

look above at answer

4 0

3 years ago

The two non-parallel sides of an isosceles trapezoid are each 7 feet long. The longer of the two bases measures 22 feet long. Th

Orlov [11]

The length of the diagonal and the shorter base are 17. 24 feet and 18. 7 feet long respectively.

<h3>How to determine the length</h3>

The cosine rule is given as;

$c = \sqrt{a^2 + b^2 - 2ab cos \alpha }$

c = length of the diagonal

a = base length = 22 feet

b = 7 feet

$c = \sqrt{7^2 + 22^2 - 2 * 7 * 22 cos 40}$

$c = \sqrt{533 - 308 * 0. 7660}$

$c = \sqrt{533 - 235. 93}$

$c = \sqrt{297. 072}$

$c = 17. 24$ feet

Using sine rule

$\frac{a}{sin A } = \frac{c}{sin C}$

$\frac{a}{sin 70} = \frac{17. 24}{sin 40}$

Cross multiply

$a$ × $sin 60$ = $c$ × $sin 70$

$a$ × $0. 8660$ = $17. 24$ × $0. 9397$

$a = \frac{16. 20}{0. 8660}$

a = 18. 7 feet long

Thus, the length of the diagonal and the shorter base are 17. 24 feet and 18. 7 feet long respectively.

Learn more about isosceles trapezoid here:

brainly.com/question/10187910

#SPJ1

5 0

2 years ago

What is , 12-1x0+4÷2???

kolbaska11 [484]

2 is the answer because if you subtract 12 to 1 it will be 11 and time by 0 and it will be 0 add by 4 and divide it by 2 and it will be 2.

8 0

4 years ago

Read 2 more answers