LESSON 5: Rational Numbers LEARNING TASK # 2 Score__________ Name:Joseph Sebastian Usi Section:7-Callalily Direction: Perform the indicated operations. 1.34+914=____221_____________ 2. 16+34=______45___________ 3. 46+418=_________220________ 4. 45-615=2 ________________ 5. 25-36=_________________ 6. 37 x 45=_________________ 7. 58x (-53)=_________________ 8. 3425=_________________ 9. 910÷(-45)=_________________ 10. 367 x 225=_________________

find the value of x so that f(x)=7

The answer is:

x = 5

The value of x such that f(x) = 7 is 5.

A function is a relation from a set A to a set B where the elements in set A only maps to one and only one image in set B. No elements in set A has more than one image in set B.

Given a graph of a function f(x).

The graph is a straight line where there is a unique value of y for each value of x.

We have to calculate the value of x when y = 7.

Taking the y coordinate to 7, the x coordinate corresponding to the y coordinate is 5.

Hence the value of x is 5.

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Answer:

4.7 years

Step-by-step explanation:

Distance of planet from Earth = 1.3 parsec

We know that 1 parsec = 3.26 light years

And a light year is the distance traveled by light in time period of 1 year.

So, Distance of planet from Earth = 1.3 [tex]\times[/tex] 3.26 = 4.24 light years

Given that, the person travels at a speed equal to 90% of the light speed.

To travel to the planet from Earth, Light takes 4.24 years.

To travel the distance [tex]D[/tex], at a speed [tex]s[/tex] light takes time of 4.24 years.

To travel the distance [tex]D[/tex], at a speed [tex]0.90s[/tex], the person takes time:

[tex]\dfrac{4.24}{0.90} = \bold{4.7\ years}[/tex]

So, the twin on Earth ages by 4.7 years.

Answer:

4.7 years

Step-by-step explanation:

Answer:

2. 134, 205, 330, 275, 365

Step-by-step explanation:

All number ending in 0 or 5 can be divisible by 5, besides 0, obviously. So, looking at the options, we can rule out 1, 3 and 4, leaving 2.

Hope this helps :)

Answer:

Step-by-step explanation:

5= -33÷-6

8= 33.6÷4.2

-5= 20÷-4

-7= -34÷4.25

Answer:

Answer:7

Step-by-step explanation:

What is the question?

Price for one binder: 1.5

Answer:

Large pizzas= 12 Medium= 8

Step-by-step explanation:

if you 12 by 5 and 8 by 6 and add them together you get 108

Answer:

lines a and b would be parallel, and the reason is <3 and <6 are alternate interior angles

Step-by-step explanation:

Answer:

I believe (not confident) You take 180-28 and divide that by 2. (76 degrees)

We know that the top angle of the triangle is 28 degrees because vertical angles are congruent.

Step-by-step explanation:

Answer:

i think ?? CORRECT ME IF IM WRONG -check my user

Step-by-step explanation:

do an opposite angle to get the top of the left triangle so it will be 28

180-28=152

152÷2=76 (because its an isosceles)

Answer:

$280 + $15x ≥ $635

Step-by-step explanation

weekly pay (280) + commision per sale (15x)  ≥ goal (635)

Answer:

y >13

Step-by-step explanation:

y - 2 > 11

solve like how you would solve an equation, with inverse operations

y -2 > 11

  +2   +2

y > 13

Answer:

it shoud just be y>13

Step-by-step explanation:

bc you add 2 to each side which cancels the -2 on the left and makes the 11 on the right 13

Answer:

V=157

Step-by-step explanation:

Formula-

V=π[tex]r^{2}[/tex][tex]\frac{h}{3}[/tex]

1.) Place height and radius in the formula.

V=π[tex]5^{2}[/tex][tex]\frac{6}{3}[/tex]

2.) Now all you have to do is simplify.

V=3.14 x 25 x 2

3.) Now solve.

V=157.07963

Answer:

I say 157 cubic centimeters

Step-by-step explanation:

Answer:

b

Step-by-step explanation:

I think it is b because none of the others

Answer:

6 or -1

Step-by-step explanation:

6=a^2-5a

=a^2-5a-6

(a-6)(a+1)

a=6, -1

1/8 2/8 3/8 4/8 5/8 6/8 7/8 8/8

1/2 1 1/2 1 1/2 1. 1/2 1

4Minutes

Answer:

x > 9/5

Step-by-step explanation:

Step 1: Write inequality

2/3x - 1/5 > 1

Step 2: Solve for x

Here we see that any x value greater than 9/5 will work.

Answer:

The expression shows the number of dollars he will have saved by the end of the year is given by 35(7)+40(5)=\$44535(7)+40(5)=$445

Step-by-step explanation:

Since we have given that

Amount he saved per month over the first 7 months = $35

Amount he saved per month over the next 5 months = $40

So, total saving by the end of the year is given by

\begin{gathered}35\times 7+40\times 5\\\\=\$245+\$200\\\\=\$445\end{gathered}

35×7+40×5

=$245+$200

=$445

Hence, the expression shows the number of dollars he will have saved by the end of the year is given by

35(7)+40(5)=\$44535(7)+40(5)=$445

Answer:

t>-3 is the answer. hope this helped!

Step-by-step explanation:

Its simple you add 4 to both sides. t-4+4 > -7+4= t > -3

Answer: both b and c equal 77 degrees

Step-by-step explanation:

103+103=206

360-206=154

154/2=77

Answer:

10

Step-by-step explanation:

7−(−3)

=7−(−3)

=7+3

=10

Answer:

10

Step-by-step explanation: calculator

Answer: Commutative Property

The Commutative Property states that any multiplication or addition equation flipped around will have the same value. For example:

   [tex]3 + 8 = 8 + 3[/tex]

Hope this helps you!

Answer:

B.

Step-by-step explanation:

Since the main goal for Marco is to stay under his budget which is 279, it's expected that he would want to spend less than or equal to his budget and that is the point to spend less than our goal of spending limit. If the cost of uniform and the cost of each of his classes are less than how much money he wants to spend, than that is going to still be within his budget even if the equation equals to 279 it is still within his budget anything greater would be consider over spending past his budget. Therefore making all other equations false.

Answer:

$ 49.64

Step-by-step explanation:

Selling price of cookie on Wednesday = 13 × 2.38 = $30.94

Selling price for brownie on Wednesday = 4 × 3.07 = $ 12.28

Selling price for cakes on Wednesday = 4 × 14.87 = $ 59.48

Cost price for cookie = 13 × 1.7 = $ 22.1

Cost price for brownie = 4 × 1.91 = $ 7.64

Cost price for cakes = 4 × 5.83 =$ 23.32

Total profit for Wednesday= Total selling price - total cost price

That is;

(30.94 + 12.28 + 59.48) - (22.1 + 7.64 +23.32) = $ 49.64

Answer:

Its the second one

Step-by-step explanation:

Answer:

It will take 4 hours for the temperatures to be the same. The temperature will be 3° at that time.

Step-by-step explanation:

Coldspot = -7 + 2.5x

Frostberg = 19 - 4x

First, we are going to input our values into the variable in a table.

          Coldspot                            Frostberg

1     -7 + 2.5(1) = -4.5                    19 - 4(1) = 15

2     -7 + 2.5(2) = -2                     19 - 4(2) = 11

3     -7 + 2.5(3) = 0.5                   19 - 4(3) = 7

4     -7 + 2.5(4) = 3                      19 - 4(4) = 3

It will take 4 hours for the temperatures to be the same. The temperature will be 3° at that time.

Hope this Helps! :)

Have any questions? Ask below in the comments and I will try my best to answer.

-SGO

Answer:

4 hours

Step-by-step explanation: