All categories

3 years ago

Help me ASAP! 20 POINTS TO THE ONE WHO ANSWERS CORRECTLY!

Mathematics

1 answer:

Marrrta [24]3 years ago

8 0

Blue triangle: perimeter is 4x+2+7x+7+5x-4, or, after simplification,
16x + 5
Red triangle: perim. is 2x-5+x+7+x+3 (and so on).

You might be interested in

Rewrite the following expression using base only once 7^6 x 7^8

chubhunter [2.5K]

Answer:

$7^{14}$

Step-by-step explanation:

Using the rule of exponents

$a^{m}$ × $a^{n}$ = $a^{(m+n)}$ , then

$7^{6}$ × $7^{8}$ = $7^{(6+8)}$ = $7^{14}$

3 0

3 years ago

Replace the? with one of following symbols (<, >, =, or) 2+3? 4+1

belka [17]

It would be the = sign because 2+3 equals 5, and so does 4+1.

6 0

3 years ago

Read 2 more answers

Can you please help me?!

Nezavi [6.7K]

Answer:

d) $x=5$

Go to station 10

Step-by-step explanation:

$-\left(1+7x\right)-6\left(-7-x\right)=36$

Expand:

$-1-7x+42+6x=36$

$-x+41=36$

Subtract 41 from both sides:

$-x+41-41=36-41$

$-x=-5$

Divide both sides by -1:

$\frac{-x}{-1}=\frac{-5}{-1}$

$x=5$

3 0

3 years ago

Read 2 more answers

10x-2y=18 8x=y solve by substitution

lana [24]

Answer:

x = -1 and y = 18

Step-by-step explanation:

Given the system of equations

y + 8x = 10... 1

2y - 4x = 40 ... 2

From 1; y = 10-8x

Substitute into 2;

2(10-8x) - 4x = 40

20 - 16x - 4x = 40

20 - 20x = 40

-20x = 40 - 20

-20x = 20

x = -1

Recall that y = 10-8x

y = 10 - 8(-1)

y = 10 + 8

y = 18

therefore your answer is x = -1 and y = 18

4 0

3 years ago

Read 2 more answers

Desmond measured a city park and made a scale drawing. The scale he used was 1 centimeter: 9 meters. The actual width of the soc

kupik [55]

Answer:

6 cm

Step-by-step explanation:

1 cm : 9 meters --> 1cm/9m

? cm : 54 meters --> ?cm/54m

$\frac{1}{9}=\frac{?}{54}; 54*\frac{1}{9}=?;6=?$

7 0

3 years ago