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2 years ago

1/2 - [-1/4+2/3] how do you solve this value of the expression

Mathematics

1 answer:

Shkiper50 [21]2 years ago

3 0

Answer:

1/12

Step-by-step explanation:

1/2-[-1/4+2/3]

1/2-[-3/12+8/12]

1/2-[5/12]

1/2-5/12

6/12-5/12

1/12

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The figures are similar. Give the ratio of the perimeters and the ratio of the areas of the first figure to the second.

pickupchik [31]

Answer: first option.

Step-by-step explanation:

The ratio of the area of the triangles can be calculated as following:

$ratio_{(area)}=(\frac{l_1}{l_2})^2$

Where $l_1$ is the lenght of the given side of the smaller triangle and $l_2$ is the lenght of the given side of the larger triangle.

Therefore:

$ratio_{(area)}=(\frac{28}{32})^2=\frac{49}{64}$

It can be written as following:

$ratio_{(area)}=49:64$

The ratio of the perimeter is:

$ratio_{(perimeter)}=\frac{l_1}{l_2}$

Where $l_1$ is the lenght of the given side of the smaller triangle and $l_2$ is the lenght of the given side of the larger triangle.

Therefore:

$ratio_{(perimeter)}=\frac{28}{32}=\frac{7}{8}$

It can be written as following:

$ratio_{(perimeter)}=7:8$

5 0

3 years ago

Write a conditional statement for Marla has a piano lesson every Tuesday.

mestny [16]

Answer: A, If it is Tuesday, Marla has a piano lesson.

B. is implying that they don’t cancel any lesson at all for any reason

C. is implying that they cannot reschedule a lesson for a different day

D. is implying that Marla cannot play piano at all unless it is for a lesson

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2 years ago

200/160 as a percentage (200 over 160)

dem82 [27]

Answer:

80%

Step-by-step explanation:

Please brainlist me

8 0

2 years ago

Read 2 more answers

It took my question down twice here's a real math question I guess