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Ira Lisetskai [31]

3 years ago

7

Mackenzie needs to determine whether the rectangles are proportional. Which process could she use? Check all that apply.

2 answers:

Butoxors [25]3 years ago

6 0

Answer:

pre-image rectangle has a length of 4 and width of 3. An image rectangle has a length of 2 and width of 1.5.

She could compare the ratios of the sides of the pre-image to the corresponding sides of the image in the proportion StartFraction 3 Over 1.5 EndFraction = StartFraction 4 Over 2 EndFraction.

Step-by-step explanation:

gayaneshka [121]3 years ago

4 0

Answer:

A and C

Step-by-step explanation:

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What is 13.60 to the nearest tenth

Tanya [424]

13.6 is the answer because .6 is a 10th value while .60 is a 100 value because it has two digits hence two zeros in 100. And therefore 10 having 1 zero means there can be only one number

5 0

3 years ago

Find the sum of the "n" terms of the series:<br> Sn=1²+3²+5²+...+(2n-1)²

djverab [1.8K]

Answer:

84

Step-by-step explanation:

12 + 32 + 52 + 72

= 1 + 9 + 25 + 49

= 84

5 0

4 years ago

An item has a listed price of $30. if the saletax rate is 7%,how much is the sale tax (in dollars)?

natulia [17]

Answer:

$2.10

Step-by-step explanation:

Tax rate = 7% , convert into 0.07

30 × 0.07 = 2.10

7 0

2 years ago

Please please please answer!!!!

AlexFokin [52]

(1) $12\frac{1}{2} -9\frac{1}{4}$

Let us convert mixed fraction into improper fraction.

$$12\frac{1}{2} -9\frac{1}{4}=\frac{25}{2} -\frac{37}{4}$

Make the denominator same.

$$=\frac{25\times2}{2\times2} -\frac{37}{4}$

$$=\frac{50}{4} -\frac{37}{4}$

$$=\frac{13}{4}$

Now convert improper into mixed fraction.

$$12\frac{1}{2} -9\frac{1}{4}=3\frac{1}{4}$

(2) $5\frac{3}{4}-2\frac{5}{12}$

$$5\frac{3}{4}-2\frac{5}{12}=\frac{23}{4}-\frac{29}{12}$

Make the denominator same.

$$=\frac{23\times3}{4\times3}-\frac{29}{12}$

$$=\frac{69}{12}-\frac{29}{12}$

$$=\frac{40}{12}$

$$5\frac{3}{4}-2\frac{5}{12}=3\frac{4}{12}=3\frac{1}{3}$

(3) $7\frac{1}{5}-3\frac{7}{10}$

$$7\frac{1}{5}-3\frac{7}{10}=\frac{36}{5}-\frac{37}{10}$

Make the denominator same.

$$=\frac{36\times2}{5\times2}-\frac{37}{10}$

$$=\frac{72}{10}-\frac{37}{10}$

$$=\frac{35}{10}$

$$7\frac{1}{5}-3\frac{7}{10}=3\frac{5}{10}=3\frac{1}{2}$

(4) $11\frac{2}{3}-8\frac{1}{2}$

$$11\frac{2}{3}-8\frac{1}{2}=\frac{35}{3}-\frac{17}{2}$

$$=\frac{35\times2}{3\times2}-\frac{17\times3}{2\times3}$

$$=\frac{70}{6}-\frac{51}{6}$

$$=\frac{19}{6}$

$$11\frac{2}{3}-8\frac{1}{2}=3\frac{1}{6}$

5 0

4 years ago

What is the value of this expression below when y=2 and z = 8 : 8y-z

madreJ [45]

Answer:

= 8

Step-by-step explanation:

y is 2 then 8y is 8×2=16

z is,8

8y - z is 16-8

=8

7 0

3 years ago