please help Moosa's sister is six years younger than 3 times his age. The sum of their ages is 30. How old is Moosa?

Answers

Answer 1

Answer: 9 years old

Step-by-step explanation:

The parts

Moosa= x

Moosa's sister = (3x-6)

and together x+(3x-6)=30

Solve for x to get 9 which means Moosa is 9 and Moosa's sister (older) is 21


Related Questions

The area of a square floor on a scale drawing is 49 square centimeters, and the scale drawing is 1 centimeter:3 ft. What is the area of the actual floor? What is the ratio of the area in the drawing to the actual area?

Answers

Answer:

the area of the actual floor is  784 ft² and the ratio is (1 cm²) ÷ (16 ft²). The same would be relevant

Step-by-step explanation:

The computation of the area and the ratio of the area is shown below:

The ratio of the drawing area to the actual area is  

= ((1 cm) ÷ (4 ft))²

= (1 cm²) ÷ (16 ft²)

 Now the actual floor area is  

(16 ft²) ÷ (1 cm²) = actual area ÷ (49 cm²)

= (16 ft²) × 49 ÷ 1

= 784 ft²

hence, the area of the actual floor is  784 ft² and the ratio is (1 cm²) ÷ (16 ft²). The same would be relevant

Which of the following leading terms would make the expression a perfect square trinomial?
____ −140xy+100y2

A) 49x^2
B) 25x^2
C) 81x^2
D) 64x^2

Answers

A) 49x^2

Because:
(7x-10y)^2 = 49x^2 - 140xy + 100y^2

What is the scale factor of the dilation?

Answers

Answer:

Step-by-step explanation:

2/5

Tuesday Evaluate the Expression: Use PEMDAS. 80 - 42+8​

Answers

Answer:

30

Step-by-step explanation:

Using BODMAS

*80-50 (42+8)

*30

PLS HELP!!!!!
which polynomial is a perfect square trinomial?

A. 49x^2 - 28x + 16
B. 4a^2 - 20a + 25
C. 25b^2 - 20b - 16
D. 16x^2 - 24x - 9

Answers

Answer:

B

Step-by-step explanation:

We have to find which trinomial has:

1) two terms that are the perfect square of two numbers

2) a terms that is the double product of the two numbers

the first condition is satisfied by A and B, but only B satisfied the second., in fact the trinomial can be rewrite as: (2a-5)^2

Options C and D are traps because the square of a number can’t be negative

Help me question 3 plzzz

Answers

Answer:

it should be the top answer

Step-by-step explanation:

it's asking for a fraction with 3 as a denominator that is greater than one. if you need a better explanation feel free to ask in a comment!

Answer:

2+x

--------- >1

3

Step-by-step explanation:

......ur welcome.......

Adele correctly calculates the measure of angle w shown in the figure

Answers

Answer: the answer is 40

Step-by-step explanation:

first of all look at the lins and you can see that the lines are the same  

Expand and Simplify: (2x-1)(3x-2)

Answers

Answer:

6x^2-7x+2

Step-by-step explanation:

Given data

We have the expression

(2x-1)(3x-2)

First let us open the bracket

2x(3x-2)-1(3x-2)

6x^2-4x-3x+2

Collect like terms

6x^2-7x+2

What’s the volume will give brainliest

Answers

I dont know but thanks for your points

Answer:

2,860cm³

Step-by-step explanation:

just multiply all of the numbers.

Find area of square
Pls help

Answers

Step-by-step explanation:

Area of square

[tex] {s}^{2} [/tex]

[tex]6.7 \times 6.7 = 44.89 {mm}^{2} [/tex]

can someone please help me :,) ​

Answers

Answer:

The answer is 40

Step-by-step explanation:

8+3+5+4=20

Once you added all the nunbers mutilpy by 2

20x2=40

that's how you get 40 as your answer

hope that helps ❤

-12 > -15
True or False?

Answers

Answer:

t

Step-by-step explanation:

-12 is closer to zero than -15

Answer: True, -12 is closer to 0 than -15. When it comes to negative numbers the number closest to 0 is always the biggest.

Alicia will construct a rectangle that has a height of 4 units and an area of up to 48 square units. Which inequality represents all the possible lengths in units of the bases, b, that Alicia can use to construct this rectangle?

Answers

Answer:

b ≤ 12

Step-by-step explanation:

The area of the rectangle is given by length multiplied by breadth.

The area of the rectangle up to 48 units square means that it can be 48 or less than 48.

If the height given is taken as the width of the rectangle then we can find the base which will be the length of the rectangle.

Area = length * breadth

4units * base ≤ 48 units square

base ≤ 48 units square/4 units

base ≤ 12 units

b ≤ 12 units

name another pair of lines that appear to be perpendicular

Answers

Answer:

parallel lines

Step-by-step explanation:

im pretty sure this is it hope this helps

Sarah uses 2 eggs for each batch
of 12 muffins that she bakes. How
many muffins can she bake with a full
carton of 12 eggs?

Answers

Answer:

I think it would be 72

Step-by-step explanation:

You would have to divided 2 by 12, which is 6. Then, you would have to multiply 6 by 12, which i s 72. I hope this is right, if not I'm sorry. I really hoped this helped :D

If the area of a rectangle can be represented by x^2 -5x-14. What two expressions can represent the dimensions of the rectangle?

Answers

Answer:

x-7

x + 2

Step-by-step explanation:

the equation is a quadratic equation

we need to find factors of -14x² that would add up to -5x

these factors are -7x + 2x

(x² + 2x) - (7x - 14)

factorise the expressions in the bracket

x(x + 2) -7(x + 2)

(x-7 )

or x + 2

Anyone know how to answer this question

Answers

Answer:

x²+y²=225

Step-by-step explanation:

when centered at the origin the equation of a circle is x²+y²=r²

we are given x and y so 9²+12²=r²

[tex]r^{2} =9^{2} +12^{2}\\ =81+144\\ =225[/tex]

What happens when the ordered pair (x,y) moves to the right?

Answers

Question is unclear

Evaluate the expression: 5 + 3 × (5 - 2)²

Answers

Answer: 32

Step-by-step explanation:

5+3*(5-2)^2

5+3*(3)^2

5+3*9

5+27

32

Answer:

32

Step-by-step explanation:

5 + 3 * (5 - 2)^2

5 + 3 * 3^2

5 + 3 * 9

5 + 2

= 32

The acceleration (in m/s/s) of a body is directly proportional to the force (in N for newton) acting on the body. If a certain body accelerates at 10 m/s/s when subjected to a force of 3 N, what will the acceleration be under a force of 8 N??

Answers

Answer:

26.667

Step-by-step explanation:

Force is directly proportional to mass and acceleration.

So Let's first bring the parameters.

F=3N, A=10m/s M=?

F=ma:.

3=Mx10,. 3=10M

M=3/10 M= 0.3

So we will use that to find the acceleration of force 8N.

F=Ma:. 8=0.3xa

8=0.3a

A=8/0.3

A=26.667.

Which is the most accurate way to estimate 66% of 46?

A: 2/3 x 47
B: 1/3 x 45
C: 1/3 x 47
D: 2/3 x 45

Answers

Answer:

30 Don't use your calculator.

Step-by-step explanation:

This is an estimation question, so you have to throw your calculator out of your reach.

You have to know that 66% is nearly 2/3 So the correct answer cannot be B or C

It must be A or D.

The problem is that 3 doesn't go into 46 so you have to change it to something that is divisible by 3. Of the numbers given, the best one is 45

2/3 * 45 = 2 * 15 = 30

How close is that (remember you have to give 30 as your answer)?

The actual answer is 30.36 which makes your estimate very good.

In the diagram ABC is congruent to DEF. aging the values of x and y

Answers

Answer:

x = 1, y = 46

Step-by-step explanation:

Since the triangles are congruent then corresponding sides and angles are congruent, then

DE = AB , that is

3x + 6 = 9 ( subtract 6 from both sides )

3x = 3 ( divide both sides by 3 )

x = 1

and

∠ C = ∠ F

10x + y = 56 ( substitute x = 1 )

10(1) + y = 56

10 + y = 56 ( subtract 10 from both sides )

y = 46

What is the equation of the line shown in the graph?

Answers

Answer:

-6

Step-by-step explanation:

I'm not really sure whether or not your question is asking for the slope intercept form or just the slope.

Your answer would be: y = -6x + 7   [if your question is asking for the slope intercept form]

OR

Your answer would be: -6   [if your question is asking for just the slope]

Somebody help pls I need help with this

Answers

Answer:

Step-by-step explanation:140

70 Miles

Explanation:
If 1 inch equals 7 miles than simply multiply 7 x 10 and that equals 70.
Hope this helps!

At middle school lunch in the cafeteria, 60% of the students pack a lunch and 40% buy a lunch. Of the students who pack a lunch, 70% have a cookie. What is the percent of the students who have a cookie at lunch?

Answers

Answer:

42%

Step-by-step explanation:

The computation of the percentage is shown below:

Here we assume that there are 100 students

So according to the question

60% of the students would pack the lunch i.e. 60 students

And, 40% of the students buy a lunch i.e. 40 students

Now the students who pack the lunch they have 70% of cookie

So, 70% of 60 students = 42 students

Now the percentage is

= 42 students ÷ 100 students

= 42%

Nick needs to raise at least $320 for his trip. He has $80 saved already, and he makes $40 per yard that he mows. Write and solve an inequality to solve for how many yards, "x," Nick must mow to earn the money.

Answers

Answer: Nick must now at least 6 yards.

Step-by-step explanation:

Since Nick has $80 saved already, and he makes $40 per yard that he mows, thus can be put up in an equation as:

= 80 + 40y

where y = number of yards

Since Nick needs to raise at least $320 for his trip, the equation to solve this will be:

80 + 40x ≥ 320

40x ≥ 320 - 80

40x ≥ 240

x ≥ 240/40

x ≥ 6

Therefore, Nick must now at least 6 yards.

What is the volume of this solid figure made with cubes

Answers

Answer:

15

Step-by-step explanation:

three times five = fifteen and height is 1

Answer:

15

Step-by-step explanation:

multiply the length x width x height

help and make sure 100 %

Answers

Answer:

1. 63

2.

3. 117

4.

Step-by-step explanation:

gimme some time to do 2 and 4

PLZ ANSWER QUICK WHAT IS THE RANGE OF THESE NUMBERS! WILL GIVE BRAINIEST

(give a correct number of the range of the numbers)

Answers

Answer:

170

Step-by-step explanation:

Val walked dogs to save money for some books she wanted to buy. To determine how much money she will make, she used the function rule y = 6x. Find f(x) = 7.

Answers

Answer:

y=6x

y=6(7)

y=6 times 7

y=42

Answer:

42

Step-by-step explanation:

if Y=6, and fx=7, then multiply 6 and 7

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