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3 years ago

Decide if each equation is true or false.

Mathematics

2 answers:

julia-pushkina [17]3 years ago

6 0

The third and fifth ones are false. Two negative numbers in the same equation make a positive not a negative

noname [10]3 years ago

5 0

True,false,false,true,true,false,true,false.

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Use the distributive property to remove the parentheses -2(4w-2v-1)

yawa3891 [41]

Answer: -8w+2v+2

Step-by-step explanation:

8 0

1 year ago

A section of a rectangle is shaded to form a rhombus. The length of one side of the rectangle is 15, and the height is x.

nordsb [41]

The answer to this question is 4 units

4 0

3 years ago

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A grocery store manager notices that this month her store sold a total of 623 gallons of ice cream, which represents a decrease

kotykmax [81]

Answer:

- The store sold 733 gallons of ice cream last month.

- The store sold 748 pounds of broccoli last month.

Step-by-step explanation:

Given

$Ice\ Cream = 623$

$\%\ Ice\ Cream = 15\%$

$Broccoli = 912$

$\%\ Broccoli = 22\%$

Solving (a): Gallons of Ice Cream

Let Gallons sold last month be G1; Gallons sold this month be G2;

The relationship between both is:

$G2 =G1 - 15\% * G1$

Substitute 623 for G2

$623 =G1 - 15\% * G1$

$623 =G1 - 0.15 * G1$

$623 =G1 - 0.15 G1$

$623 =0.85 G1$

Divide through by 0.85

$G1 = 623/0.85$

$G1 = 732.941176471$

$G1 = 733$

Solving (b): Pounds of Broccoli

Let Pounds sold last month be P1; Pounds sold this month be P2;

The relationship between both is:

$P2 =P1 + 22\% * P1$

Substitute 912 for P2

$912 =P1 + 22\% * P1$

$912 =P1 + 0.22 * P1$

$912 =P1 + 0.22 P1$

$912 =1.22 P1$

Divide through by 1.22

$P1 = 912/1.22$

$P1 = 747.540983607$

$P1 = 748$

6 0

3 years ago

I need help on this- nothing is right for me

tresset_1 [31]

Answer:

5. Area = 28.5 cm; 6. Area = 544,500 cm

Step-by-step explanation:

Area = Length×Width

5. You have to convert the mm to cm by dividing the mm by 10. Then just multiply the length and width.

6. Same thing; different unit, convert the m to cm (or vice versa, not sure which unit you need to answer in) and multiply the length and width.

7 0

2 years ago

Read 2 more answers

AABC ~ADEF F 21 D B N 28 E C Solve for N. 28 = ☆ N=[?]

sergij07 [2.7K]

Answer:

N = 3

Step-by-step explanation:

$\frac{28}{4} = \frac{21}{N} \\ \\ 28N = 21 \times 4 \\ 28N = 84 \\ \\ N = \frac{84}{28} \\ \\ N = 3$

I hope I helped you^_^

8 0

3 years ago