3 years ago

Help me do the ones marked with red.

Mathematics

1 answer:

Evgen [1.6K]3 years ago

6 0

Answer:

2. 6 + 4 (19 - 15) = 22

6. 2.75 + 3.5 + 4.25 + 1.5 = 12

10.7 + (9 - 3^2) = 8

14. 6 * 1 ÷ 5 (12 ÷ 4 - 3) = 1

You might be interested in

If triangle ABC is similar to triangle PQR, find the value of x and y.

tester [92]

Answer:

x = 9

y = 6

Step-by-step explanation:

ΔABC ~ ΔPQR

Therefore, corresponding sides of these similar triangles will be in the proportional.

$\frac{AB}{PQ}=\frac{BC}{QR}= \frac{AC}{PR}$

$\frac{6}{x}= \frac{4}{y}= \frac{8}{12}$

$\frac{6}{x}= \frac{8}{12}$

x = $\frac{12\times 6}{8}$

x = 9

Similarly, $\frac{4}{y}= \frac{8}{12}$

y = $\frac{12\times 4}{8}$

y = 6

6 0

3 years ago

A politician is interested in the proportion of voters in his district that think he is doing a good job. Define the following i

valina [46]

The sample is all voters in the district that think he’s doing a good job

3 0

3 years ago

1) In a yoga class, 75% of the students are women. There are 24 women in the class. How many students are in the class?

mel-nik [20]

Answer:

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

Use the matrix tool to solve the system of equations 5x+2y=1 and -x-y=-2

Aleks [24]

Answer:

Step-by-step explanation:

$1.5x+2y=1\\2.-x-y=-2\\2.2(-x-y=-2)\\5x+2y=1\\-2x-2y=-4 +\\3x=3\\x=1\\Substitute into number one\\5+2y=1\\y=-2$

6 0

3 years ago

Solve for x<br> 3<br> A<br> X<br> x + 4

irinina [24]

X=4x3•A+-6 hope this helps

6 0

2 years ago