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agasfer [191]
3 years ago
14

Antonio has a total of 55 marbles. He has 15 green marbles and 12 red marbles. The rest of the marbles are blue. How many blue m

arbles does he have?
A student solves this problem by writing an equation. Which strategy could help check the student’s answer?
Mathematics
1 answer:
dedylja [7]3 years ago
5 0
Step 1: Create Equation: 12+15+x=55

Step 2: Solve it: you will get x=28

Step 3: You could check it by plugging your answer in.

Hope that helps!!!
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Maria walks a round trip of 0.75 mile to school every day how many miles will she walk in 4.5 days
SSSSS [86.1K]
You multiply .75 and 4.5. 

6 0
3 years ago
molly ran 1/4 of a mile in 1 minute if molly runs at that speed how long will it take her to run 4 miles
Vika [28.1K]

Step-by-step explanation:

Molly ran 1/4 of a mile in 1 minute, i.e.

1/4 mile : 1 minute

Multiply both sides by 4 to get time for one mile

1 mile : 4 minutes

Multiply by 4 again to get time for 4 miles

4 miles = 4*4 = 16 minutes.

So it takes Molly 16 minutes to run four miles.

7 0
3 years ago
Please help! Identify each decimal number as either rational or irrational.
labwork [276]

Answer:

A Rational number is a number that can be written as a ratio in fraction form.

An Irrational number is a number that, when in decimal form, does not terminate or repeat.

Step-by-step explanation:

1.485 can be written as 1 485/1000 - it is rational

0.187345911... continues on and does not repeat - it is irrational

333.051422218... continues on and does not repeat - it is irrational

0.2268715 can be written as 2268715/10000000 - it is rational

1.24 can be written as 1 24/100 - it is rational

6 0
3 years ago
i am greater than 1/4 but less than 4/10. i am a decimal rounded to the hundredths place with the digit 1 in my hundredths place
lions [1.4K]
The answer is 0.3. because it's between 0.25 and 0.4 rounded
7 0
2 years ago
Read 2 more answers
if B is between A and C, D is between C and E, and C is the midpoint of both segments BD and Segment AE, then segment AB congrue
TiliK225 [7]

The five statements and reasons below have proved that Segment AB is congruent to segment DE;

<u><em>Statement 5; AB ≅ DE</em></u>

We are Given:

B is between A and C

D is between C and E

C is the midpoint of both segments BD and AE

AB ≅ DE

We want to prove that;

AB ≅ DE

Statement 1; C is the midpoint of BD and AE.

Thus; BC = CD and AC = CE

Reason; because a midpoint divides a segment into 2 equal parts.

Statement 2; AB + BC = AC and CD + DE = CE

Since B is between A and C and D is between C and E, then we can say;

AB + BC = AC

CD + DE = CE

Reason; property of line segment addition

Statement 3; AB + BC = CD + DE

Since AC = CE, then using substitution property of equality on statement 2, we have; AB + BC = CD + DE

Reason; Substitution property of Equality

Statement 4; AB + BC = BC + DE

Since BC = CD, the using substitution property of equality on CD in statement 3, we have; AB + BC = BC + DE.

Reason; Substitution property of Equality

Statement 5; AB ≅ DE

Using subtraction property of equality on statement 4, BC will cancel out to give; AB = DE

Equal segments are congruent and so we can write; AB ≅ DE

Reason; Subtraction property of equality

Read more at; brainly.com/question/11494126

8 0
2 years ago
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