2 years ago

- 10x - 5y = 5 - 4x + 5y = 23

Mathematics

1 answer:

Elina [12.6K]2 years ago

7 0

The answer is (-2,3)

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Please answer this correctly

RUDIKE [14]

Answer:

$11\dfrac{3}{8}\text{cm}$

Step-by-step explanation:

$1\dfrac{5}{8}+2\dfrac{9}{16}+2\dfrac{9}{16}+4\dfrac{1}{8}=11\dfrac{3}{8}$

Hope this helps!

3 0

3 years ago

Luis bought a pair of pants and a shirt He spent $15 on the pants. He bought five shirts that each cost d dollars less than the

Natali5045456 [20]

15=pants
d less than pants means
15-d

5 of them
5(15-d)=cost of shirts

so total cost=15+5(15-d)

3 0

3 years ago

What is <br> 2n - 3 = 9 ( solve the equation)

BartSMP [9]

$2n - 3 = 9 \\ 2n = 12 \\ n = 6$

5 0

3 years ago

How to find the zeroes by factoring

Rashid [163]

Your set the equation equal to 0 and you start factoring it, if it doesn’t factor out then you use the quadratic formula but if you do that then set it equal to “X”, not equal to 0

7 0

3 years ago

(Number 5)help plzzz

EleoNora [17]

Answer:

See below.

Step-by-step explanation:

So we want to prove that:

$\sqrt8+\sqrt2=3\cdot 2^{\frac{1}{2}}$

First, simplify √8. This is the same as:

$\sqrt8=\sqrt{4\cdot 2}=\sqrt4\cdot\sqrt2=2\sqrt2$

Therefore, our equation is now:

$2\sqrt2+\sqrt2=3\cdot2^{\frac{1}{2}}$

Combine like terms on the left:

$3\sqrt2=3\cdot 2^\frac{1}{2}}$

The square root of something is the same as taking that number to the one-half power. Thus:

$3(2)^\frac{1}{2}}=3\cdot 2^\frac{1}{2}}$

Rewrite:

$3\cdot2^\frac{1}{2}}\stackrel{\checkmark}{=}3\cdot2^\frac{1}{2}}$

And we're done!

6 0

3 years ago