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Marizza181 [45]
3 years ago
7

1 2 TIME REMAIN 50:24 How could Theo check his work? Check all that apply. Theo solved n + 5 = 11 for the unknown. The steps he

took are shown. He started with 5 tiles. He could substitute 5 forn in the original equation and add. He could substitute 6 for n in the original equation and add. Then he added tiles as he counted up to 11. He could subtract 5 from 11 and check that the answer is 6. He realized he added 6 more tiles to his original 5 to make 11. So he found the unknown to be 6. He could subtract 11 from 5 and check that the answer is 6. O He could put all the tiles in 1 pile to count them to see if there are 11 in all.​
Mathematics
1 answer:
elena-14-01-66 [18.8K]3 years ago
3 0

Answer:

so first you do the work than check

Step-by-step explanation:

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0.267 es la respuesta redondeada a la milésima más cercana

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Needs 3 and 1/4 cups of oatmeal how many 1/4 cups of oatmeal will she use
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5 0
3 years ago
BD = 21 m.<br> BC= 25 m.<br> DE = 40 m.<br> AB = 7m.<br><br> Find AB
Cloud [144]

Given:

Let us consider the given sides are:

BD=21m

BC=25m

DE=40m

AB=xm

To find:

The length of side AB.

Solution:

Suppose the measure of AB be x.

From the given figure it is clear that,

\angle ADE \cong \angle ABC                 (Right angles)

\angle ADE \cong \angle ABC                  (Corresponding angles)

In triangles ABC and ADE, two corresponding angles are congruent. So, by AA property of similarity,

\Delta ABC\sim \Delta ADE

We know that, corresponding sides of similar triangle are proportional.

\dfrac{AB}{BC}=\dfrac{AD}{DE}

\dfrac{x}{25}=\dfrac{(x+21)}{40}

40x=25(x+21)

40x=25x+525

Isolating the x terms, we get

40x-25x=525

15x=525

x=\dfrac{525}{15}

x=35

Hence, the measure of AB is 35 m.

6 0
3 years ago
True or False?
7nadin3 [17]

Answer:

false

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
During a field trip, 60 students are put into equal sized groups.
Alisiya [41]

Answer:

The quotient would be 12.

Step-by-step explanation:

The first way to interpret it would be: 60 as the total amount of students, divided by 5 students per group which = 12 groups with 5 students in each.

The second way to interpret it would be: 60 as the total amount of students, divided into 5 groups which = 12 students in each group.

8 0
3 years ago
Read 2 more answers
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