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zhenek [66]
3 years ago
15

Please someone help me with this question I’m getting stressed and I’m tired.

Mathematics
1 answer:
Nostrana [21]3 years ago
7 0

Answer: (1,4)

Step-by-step explanation:

2x - 3y = -10

y = 4x

2x - 3(4x) = -10

2x - 12x = -10

-10x = -10

x = 1

y = (4)(1)

y = 4

Double Check:

2(1) - (3x4) = -10

2-12 = -10

-10 = -10

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Simplify -26a^7+(-25a^7)
faltersainse [42]

Answer:

-51a^7

Step-by-step explanation:

-26a^7+(-25a^7) may be re-written as a^7(-26 - 25), or -51a^7

7 0
3 years ago
Matthew has two kinds of rice show i this table. 8 7/8 and 6 3/4. How much more brown rice than white rice does Matthew have?
Serjik [45]

let's firstly convert the mixed fractions to improper fractions and then get their difference.

\stackrel{mixed}{8\frac{7}{8}}\implies \cfrac{8\cdot 8+7}{8}\implies \stackrel{improper}{\cfrac{71}{8}} ~\hfill \stackrel{mixed}{6\frac{3}{4}}\implies \cfrac{6\cdot 4+3}{4}\implies \stackrel{improper}{\cfrac{27}{4}} \\\\[-0.35em] ~\dotfill\\\\ \cfrac{71}{8}-\cfrac{27}{4}\implies \cfrac{1(71)~~ -~~2(27)}{\underset{\textit{using this LCD}}{8}}\implies \cfrac{71-54}{8}\implies \cfrac{17}{8}\implies 2\frac{1}{8}

8 0
3 years ago
I NEED HELP PLEASE THANKS
Simora [160]

Answer:

D. Reflect across the x-axis, then shift 4 units up

Step-by-step explanation:

In this case, reflecting across the x-axis just means going 4 units down. To go back up, go 4 units up.

8 0
3 years ago
Given f(x)=7(9−x), what is the value of f(−3) ?
Katarina [22]

Answer:

f(− 3) = 84

Step-by-step explanation:

Given the function,  f(x) = 7(9 − x), to find the value of f(-3) substitute x = -3 into the function:

f(− 3) = 7(9 − (− 3))

f(− 3) = 7(9 + 3)

f(− 3) = 7(12)

f(− 3) = 84

Therefore, f(− 3) = 84.

Please mark my answers as the Brainliest if you find my explanations helpful :)

6 0
3 years ago
Example 3
chubhunter [2.5K]

Answer:

We conclude that

  • The angle ∠1 = x = 36°
  • The angle ∠2 = 4x = 4(36°) = 144°

Step-by-step explanation:

Given

<1 and <2 form a linear pair

m∠1 = 4m∠2

To determine

Find the measure of each of the two angles.

<u>Important Points about linear pair:</u>

  • We know that when two lines meet or intersect, we get a linear pair of angles.
  • Linear pairs are basically two adjacent angles that form a line.
  • The measure of two adjacent angles forming a straight line is 180, meaning they are supplementary.

As

<1 and <2 form a linear pair

m∠1 = 4m∠2

In other words, angle 1 is 4 times the measure of angle ∠2.

Let the angle ∠1 be = x

As the angle 1 is 4 times the measure of angle ∠2, so

The angle 2 will be = 4x

As <1 and <2 forms a linear pair, thus the measure of the sum of <1 and <2 will be 180°, so

x + 4x = 180

5x = 180

divide both sides by 5

\frac{5x}{5}\:=\:\frac{180}{5}

\:x=36^{\circ }

Thus, we conclude that

  • The angle ∠1 = x = 36°
  • The angle ∠2 = 4x = 4(36°) = 144°
4 0
3 years ago
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