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3 years ago

Complete the equation and tell which property you used (3×10)×8=____×(10×8)

Mathematics

1 answer:

NISA [10]3 years ago

4 0

3x10=30x8=240

_(8x10)= _(80)

3(80) or 3x80 = 240

Answer is 3!

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Which of the following is an example of a quadratic equation?

dem82 [27]

Answer:

Step-by-step explanation:

Because it is a polynomial with highest degree of x = 2.

4 0

3 years ago

How can you model how to find the answer to 55 divided by 5 to young child? Explain.

docker41 [41]

Answer

55 divided by 5 = 11

Step by step explanation

Assume that we have 55 balls, we have to group 5 balls in each group.

How many group can we form?

The number of groups = 55/5 = 11

Use can see it in the picture.

We have to explain with pictorial method.

I have attached the figure.

Hope this will helpful.

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8 0

3 years ago

there are 7 yellow marbles and 10 orange marbles in a bag you randomly choose one of the marbles what is the possibilty of choos

densk [106]

Answer:

probability; ( of choosing a yellow marble)

7 yellow marbles + 10 orange marbles = 17 in total

if the no of yellow marbles is 7 therefore = ⁷/10

so that is the probability ⁷/10

Hope this helps

4 0

3 years ago

Read 2 more answers

Adult tickets to a basketball game cost $5. Student tickets cost $1. A total of $2,783 was collected on the sale of 1,235 ticket

choli [55]

A = the number of adult tickets

S = the number of student tickets

[you can use different variables x, z, t, etc...]

5A + S = 2783 [$5 per adult plus $1 per student = total $2783]

A + S = 1235 [# of adults plus # of students = 1235]

To find A and S, you need to do substitution. First isolate one of the variables using either one of the equations, I will isolate the A in A + S = 1235:

A + S = 1235 Subtract S on both sides of the equation

A = 1235 - S

Next substitute/plug in (1235 - S) for A to find the value of S:

5A + S = 2783 [isolate/get S by itself in the equation]

5(1235 - S) + S = 2783 Distribute/multiply 5 into (1235 - S)

(5)1235 - (5)S + S = 2783

6175 - 5S + S = 2783 Combine like terms (-5s and S)

6175 - 4S = 2783 Subtract 6175 on both sides

-4S = -3392 Divide -4 on both sides

S = 848

Now that you found S, you can use it to find A:

A + S = 1235

A + 848 = 1235 Subtract 848 on both sides

A = 387

S = 848 student tickets

A = 387 adult tickets

6 0

3 years ago

Which expressions are equivalent to 1.08^4t?

artcher [175]

Answer:

Therefore,

The Equivalent expression is option A,

$(1.08^{4})^{t}$

Step-by-step explanation:

Given:

Expressions is

$1.08^{4t}$

To Find:

Equivalent expression ?

Solution:

We have Law of indices

$(a^{x})^{y}=a^{x\times y}\\(a^{\frac {x}{y}})^{z}=a^{\frac{x\times z}{y}$

For option A

(1.08^t)^4

$(1.08^{4})^{t}=1.08^{4t}$

Hence option A is the Equivalent expression.

For option B

1.08^8t/1.08^2t

$(1.08^{\frac{8t}{1.08}})^{2t}=1.08^{\frac{16t^{2}}{1.08}}=1.08^{14.81t^{2}}$

Which is not the Equivalent expression.

For option C

1.08^4*1.08^t

$(1.08^{4\times 1.08})^{t}=1.08^{4.32t}$

Which is not the Equivalent expression.

For option D

1.08^6t/1.08^2t

$(1.08^{\frac{6t}{1.08}})^{2t}=1.08^{11.11t^{2}}$

Which is not the Equivalent expression.

Therefore,

The Equivalent expression is option A,

$(1.08^{4})^{t}$

6 0

3 years ago