All categories

3 years ago

75+(-57) will the following sum be positive ,negative or zero?Explain your thinking

Mathematics

1 answer:

madam [21]3 years ago

7 0

Answer:

The sum will be positive because when using KCF ( keep change flip) the problem becomes 75-57 therefore the answer will be positive 18. hope this helps

You might be interested in

The portions of gold in three bracelets are shown. Which bracelet has the highest portion of gold?

KatRina [158]

Bracelet b
13/20 = 65%

5 0

3 years ago

Read 2 more answers

1 and one eighths times one fourth

solniwko [45]

Answer:

0.28125 or 9/32

Step-by-step explanation:

7 0

4 years ago

8) What are the products of photosynthesis?

Mamont248 [21]

Answer:

A).

Step-by-step explanation:

Under the action of sunlight plants convert carbon dioxide and water into glucose anf oxygen.

3 0

3 years ago

Can anyone help me with these two plz

Evgen [1.6K]

Answer:

Part 1) The scale factor is $1.5$

Part 2) The altitude QS is $4\ units$

Part 3) The scale factor is $\frac{2}{3}$

Part 4) The value of x is $12\ units$

Part 5) The perimeter of ABCDE is $46\ units$

Step-by-step explanation:

Part 1) Find the scale factor of triangle TQR to triangle NQP

we know that

If two figures are similar, then the ratio of its corresponding sides is proportional and this ratio is called the scale factor

Let

z-----> the scale factor

$z=\frac{NP}{RT}$

substitute the values

$z=\frac{24}{16}=1.5$

Part 2) Find the length of the altitude QS

we know that

To find the altitude QS, divide the altitude of triangle NQP by the scale factor

$QS=\frac{6}{1.5}=4\ units$

Part 3) Find the scale factor of FGHJK to ABCDE

we know that

If two figures are similar, then the ratio of its corresponding sides is proportional and this ratio is called the scale factor

Let

z-----> the scale factor

$z=\frac{AB}{FG}$

substitute the values

$z=\frac{10}{15}=\frac{2}{3}$

Part 4) Find the value of x

we know that

The value of x is equal to multiply the length side FK by the scale factor

$AE=FK(z)$

substitute the values

$AE=18(2/3)=12\ units$

Part 5) Find the perimeter of ABCDE

we know that

If two figures are similar, then the ratio of its perimeters is equal to the scale factor

Let

z-----> the scale factor

x-----> the perimeter of ABCDE

y-----> the perimeter of FGHJK

$z=\frac{x}{y}$

we have

$z=\frac{2}{3}$

$y=15+9+12+15+18=69\ units$

substitute the values

$z=\frac{x}{y}$

$x=(z)(y)=\frac{2}{3}(69)=46\ units$

6 0

4 years ago

Can yall only answer the first one Pls

ollegr [7]

The answer to part A is 1,852.50

3 0

3 years ago

75+(-57) will the following sum be positive ,negative or zero?Explain your thinking​

75+(-57) will the following sum be positive ,negative or zero?Explain your thinking