question in pic help

Answer:

1. 29

2. 30

3. 4

4. 14

Step-by-step explanation:

5*7=35 35-6=29

4*7=28 28+2=30

8/2=4

7*2=14

Answer: 829393

Bn

Step-by-step explanation:

Answer:

−5x + 4y = 8

−x + 5y = 10

Step-by-step explanation:

Answer:

$350 / 5 months = $70 per month

Answer: Area = 60 mm²

Step-by-step explanation:

The area of a triangle is 1/2 times base times height.

b = 12   h = 10

1/2 × b × h

1/2 × 12 × 10

1/2 × 120

60 mm²

Answer:

7/20

Step-by-step explanation:

So first we know that there are a total od 25 students

15+10=25

And the probability of choosing the first girl is 15/25 or 3/5 simpler terms.

Now to be able to choose another girl in a row just multiply the then probability

So we started off with 25, if a girl was choosen, the population would b 24

and with 24, there is a missing girl so instead of 15 it is 14

now 14/24 or 7/12 simplified

multiply the two

7/12*3/5=21/60

Simplified

7/20

Answer:

[tex] \frac{y - ( - 4)}{x - 0} = \frac{3 - ( - 4)}{2 - 0} \\ \frac{y + 4}{x} = \frac{3 + 4}{2} \\ \frac{y + 4}{x} = \frac{7}{2} \\ 2(y + 4) = 7x \\ 7x = 2y + 8 \\ 7x - 2y = 8 \\ 2y = 7x - 8 \\ \boxed{y = \frac{7}{2}x - 4}[/tex]

Answer:

2/9, 2/8, 2/3

Step-by-step explanation:

2/9= 0.22 (to 2 decimal point)

2/8= 0.25

2/3 = 0.67

Answer:37.5

Step-by-step explanation:

5*750/100 =37.5

Answer:

-2x + 3 – (5 – 6x) = 4x - 2

Step-by-step explanation:

The given expression is :

-2x + 3 – (5 – 6x)

We need to simplify the above expression. First opening the brackets.

-2x + 3 – (5 – 6x) = -2x + 3 – 5 + 6x

Taking like terms together,

= -2x+6x + 3 -5

= 4x - 2

So, the simplified expression is 4x - 2.

Step-by-step explanation:

it's the 2nd one

...................

Answer: b = 2

Step-by-step explanation:

[tex]b = \frac{2\sqrt{2}}{\sqrt{2} }\\b = 2[/tex]

Since this is a 45°-45°-90° triangle, the side opposite the 90° angle is √2× the other two angles. The other two angles are congruent since their opposite angles are both 45°.

Hope this helped! :p

Step-by-step explanation:

2[tex]\sqrt{2}[/tex] is the hypotenuse

The other 2 sides are equal to b since this is a 45-45-90 triangle meaning that it's isosceles

[tex]2b^{2}[/tex] = ([tex]2\sqrt{2}[/tex][tex])^{2}[/tex]

[tex]2b^{2}[/tex] = ([tex]\sqrt{8})^{2}[/tex]

[tex]2b^{2}[/tex] = 8

[tex]b^{2}[/tex] = 4

b= 2

Hope this helps!!!

Sorry for taking so long

Answer:

x = 63/2

Step-by-step explanation:

x /3  =  21 /2

3 . x/3 = 3 . 21/2

x  =  63 /2

Answer:

Step-by-step explanation:

Well what are the sizes of the bags, and what are the prices of the bags

Answer:

35%

Step-by-step explanation:

Answer:

Option D

Step-by-step explanation:

Formula for the surface area of rectangular prism = 2(lb + bh + hl)

Here, l = Length of the prism

b = Width  

h = Height

If l = 25 cm, b = 12 cm and h = 20 cm

Surface area of the rectangular prism = 2(25×12 + 12×20 + 20×25) cm²

Therefore, Option D will be the correct option.

Answer:

Step-by-step explanation:

Given the two similar quadrilaterals

As per similarity, their corresponding sides have same ratio:

MN = 15 units

Answer:

The simplified expression of  [tex]\frac{7^{4}.7^{6}}{7^{8}}[/tex] is 7² ⇒ C

Step-by-step explanation:

Let us revise some rules of exponent

Let us solve the question

∵ The expression is [tex]\frac{7^{4}.7^{6}}{7^{8}}[/tex]

→ By using the first rule above add the exponents of 7

∴  [tex]\frac{7^{4}.7^{6}}{7^{8}}[/tex] = [tex]\frac{7^{4+6}}{7^{8}}[/tex]

∴  [tex]\frac{7^{4}.7^{6}}{7^{8}}[/tex] = [tex]\frac{7^{10}}{7^{8}}[/tex]

→ By using the second rule above, subtract the exponents of 7

∵  [tex]\frac{7^{4}.7^{6}}{7^{8}}[/tex] = [tex]7^{10-8}[/tex]

∴  [tex]\frac{7^{4}.7^{6}}{7^{8}}[/tex] = 7²

∴ The simplified expression of  [tex]\frac{7^{4}.7^{6}}{7^{8}}[/tex] is 7²

the answer is 7 power 2

Answer:

48:18:24 or ∠A = 48, ∠B = 18, ∠C = 24

Step-by-step explanation:

Since The angles of a triangle add up to 90, then 8 + 3 + 4 should equal to 90 if multiplied by x.

Example:

x(8 + 3 + 4) = 90

x(15) = 90

15/15x = 90/15

x = 6

If x is equal to 6, then 6 times 8, 6 times 3, and 6 times 4, should equal their respective angles and add up to 90.

Example:

8 * 6 = 48

3 * 6 = 18

4 * 6 = 24

48 + 24 + 18 = 90

This means the angles are

48:18:24 or ∠A = 48, ∠B = 18, ∠C = 24

Answer:

4 1/3 cups

Step-by-step explanation:

All you have to do for this one is subtract 5 2/3 from 10, which is 4 1/3. Your equation could be 10-5 2/3=x.

Answer: 20 questions

Step-by-step explanation:

Answer:

15/x*100=75

75/100*15=x

x=20

total no. of questions

Answer:

3.2

Step-by-step explanation:

12 4/5 times 1/4= 3 1/5 or 3.2

Step-by-step explanation:

here they gave 12 km are reached by 2.5 hours so we. should how much time they took for 1km

12/ 2.5 which is also 150min

12km which is also 12000

12000/150= 80m

it took 80m in 1min so

1hr = 60min

1hr x 80m

60x80

4800

convert it intlo km

4800/1000

4.8km

so it took 4.8 km for 1hour

The time to complete the race is 2.5 hours, then the rate will be equal to 4.8 kilometers per hour.

The four basic operations of arithmetic can be used to add, subtract, multiply, or divide two or even more quantities.

They cover topics like the study of integers and the order of operations, which are relevant to all other areas of mathematics including algebra, data processing, and geometry.

As per the given information in the question,

Total distance = 12 kilometers

Total time taken to complete 12 kilometers = 2.5 hours

Then, the rate in kilometers per hour will be,

= 12/2.5

= 4.8 kilometers per hour.

To know more about arithmetic operations:

https://brainly.com/question/13585407

#SPJ5

Answer:

A is the correct answer

Step-by-step explanation:

We need to figure out the base and the height. We can do that using pythagorean's theorem.

The others either misused the pythagorean theorem or got the 1/2*base*height formula wrong, so A is the answer.

Answer:

The answer is 856.17.

Step-by-step explanation:

If you made the fraction into a decimal, you would get 856.166666666. If you round it to the nearest hundredth, you would get 856.17.

Answer:

D

Step-by-step explanation:

Answer: I don't really understand, but something in my brain says D haha

Answer:

6 - 4i

Step-by-step explanation:

-4 + i = 10 - 5i

+4       +4      

i = 14 + 5i

-5i      -5i      

-4i = 14

i = -3.5

Answer:

6-4i

Step-by-step explanation:

Answer: 1387.5 miles

Step-by-step explanation:

hope this helps :)

Answer:

180

Step-by-step explanation:

Answer:

37.34 or 37 if rounded

Step-by-step explanation:

Write the equation vertically to make it easier.  8 minus 4 equals 4, 5 minus 2 equals 3, 9 minus 2 equals 7, and 6 minus 3 equals 3.