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Stells [14]
3 years ago
12

Hi Brainly users! I have an 8th grade math problem for you. 15 points plus Brainiest for the person with the most helpful answer

!
Please view the screenshot of my question........

Mathematics
1 answer:
RUDIKE [14]3 years ago
6 0

Answer:

The answer is D. 14

Step-by-step explanation:

If you were to plug in 14 for x, it would look something like this:

\frac{14-4}{14} = \frac{5}{7}

Solve 14-4

\frac{10\\}{14} = \frac{5}{7}

if you were to multiply 5 and 7 by 2, you would get

\frac{10}{14}.

This makes the equation true, because

10/14 does equal itself (10/14)

Have a nice day!

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Solve the system of equations for x and y.<br> y = x + 5<br> y = 2x + 2
DIA [1.3K]
Answer (x,y) (3, -2)

Explanation:
using the
substitution method
y
=
x
−
5
→
(
1
)
y
=
−
2
x
+
4
→
(
2
)
since both equations are expressed in terms of x we

can equate them
⇒
x
−
5
=
−
2
x
+
4
add 2x to both sides
2
x
+
x
−
5
=
−
2
x
+
2
x
+
4
⇒
3
x
−
5
=
4
add 5 from both sides
3
x
+
5
−
5
=
4
+
5
⇒
3
x
=
9
divide both sides by 3
3
x
3
=
9
3
⇒
x
=
3
substitute this value in
(
1
)
y
=
3
−
5
=
−
2
As a check
substitute these values into
(
2
)
right
=
−
6
+
4
=
−
2
=
left
⇒
point of intersection
=
(
3
,
−
2
)
3 0
3 years ago
Solve for X<br> A) 13<br> B) 5<br> C) 14<br> D) 1
Drupady [299]

Answer:

B) 5

Circle is 360 degr. So (21x+9) +(23x-5) +(26x+6)=360

Combine like terms 70x+10=360

Additive inverse -10 from both sides, 70x= 350

Divide both side by 70 division Property of Equality x=5.

Check your answer by substituting 5 back into original solution!

Step-by-step explanation:

3 0
3 years ago
Help my sister with this pls
NeX [460]

Answer:

23

Step-by-step explanation:

i think

3 0
3 years ago
According to Internet security experts, approximately 90% of all e-mail messages are spam (unsolicited commercial e-mail), while
KonstantinChe [14]

Answer:

0.0656

Step-by-step explanation:

For each message, we have these following probabilities:

90% probability it is spam.

10% probability it is legitimate.

Compute the probability that the first legitimate e-mail she finds is the fifth message she checks:

The first four all spam, each with a 90% probability.

The fifth legitimate, with a 10% probability.

P = (0.9)^{4} \times 0.1 = 0.0656

3 0
3 years ago
The selling price of a dinner table is $250, the markup is 40%. What is the cost of the table
kvv77 [185]
250×.40 = 100.00

250.00+100.00 =350.00

your answer is $350.00
5 0
4 years ago
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