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lana [24]
4 years ago
6

Complete the tree map by using the review words

Mathematics
1 answer:
djyliett [7]4 years ago
3 0
What review words exactly?
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Mrs. Dodson has a jar full of pennies and quarters. There are 120 coins in the jar worth a
Anton [14]

<em><u>Answer: 10.</u></em>

<em><u /></em>

<em><u>Step-by-step explanation:</u></em>

<em><u>DIVISION. 120/12.</u></em>

<em><u>That is hard! Here's a trick.</u></em>

<em><u>12x9= 99=9=108. Or 12x6=66+6=72.</u></em>

<em><u>We will stick with 12x9,  that equals 108.</u></em>

<em><u>We should add another 12 until we get to 120. </u></em>

<em><u>108+12=120. That is 10 times. The trick was...</u></em>

<em><u>dividing by 12 is hard, so lets say 12x4. I can put 4 and 4 together.</u></em>

<em><u>44 then and another 4. That is 48. So 12x4=48.</u></em>

<em><u /></em>

5 0
3 years ago
I need help with this.
Sloan [31]

9514 1404 393

Answer:

  61.4

Step-by-step explanation:

The length of two semicircles of diameter 10 is the circumference of a circle of that diameter:

  C = πd = 10π ≈ 31.4

The perimeter includes that length plus the lengths of two straight sides that are 15 units each.

  P = 31.4 + 2×15

  P = 61.4 . . . . units

4 0
3 years ago
WILL GIVE BRAINLIEST!!!!!! AND 40 POINTS
olga2289 [7]

Answer:

360°

Step-by-step explanation:

xjjdjdjdjedjejdjej

8 0
3 years ago
Find the area of the parallelogram determined by the vectors i +j+k and –2i + 3j + K.​
Wewaii [24]

The area of the parallelogram spanned by the given vectors is equal to the magnitude of their cross product.

(i + j + k) × (-2i + 3j + k)

= -2 (i × i) - 2 (j × i) - 2 (k × i)

… + 3 (i × j) + 3 (j × j) + 3 (k × j)

… + (i × k) + (j × k) + (k × k)

= - 2 (j × i) - 2 (k × i) + 3 (i × j) + 3 (k × j) + (i × k) + (j × k)

= 2 (i × j) - 2 (k × i) + 3 (i × j) - 3 (j × k) - (k × i) + (j × k)

= 5 (i × j) - 3 (k × i) - 2 (j × k)

= 5 k - 3 j - 2 i

Then the area of the parallelogram is

||-2 i - 3 j + 5 k|| = √((-2)² + (-3)² + 5²) = √38

6 0
2 years ago
The length of a rectangle is 7 inches more than three times the width. the perimeter is 94 inches. find the length and width.
umka21 [38]

10 + 37 + 37 + 10
7 0
3 years ago
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