There is I teacher for every 18 students on a school trip. How many teachers are there if 72 students go on the school trip?
Move values to create a proportion that can be used to solve the problem.

Answer:

c

Step-by-step explanation:

Answer:

c

Step-by-step explanation:

Answer:

12 is the answer

Step-by-step explanation:

Answer:

D)4

Step-by-step explanation:

rise over run

rise=8 run=2

8/2

=4/1

=4

Answer:

4

Step-by-step explanation:

For every 1 you go over you go up 4

Answer:

The length of the base is 9.8 centimeters.

Step-by-step explanation:

The formula for the area of a triangle is Area = 1/2 * b * h

Substitute the area and height into this formula and you can solve for the base length. Hope this helps!

Answer:

9.8 cm

Step-by-step explanation:

The formula for a triangle is 1/2*b*h

Answer:

0.05203*10 to the power 2

Step-by-step explanation:

To get the standard form you divide a number in order to multiply it by a power of 10 to get the same number. So 5.203 in standard form is o.o5203 * 10 to the power 2. The 10 to the power 2 comes from the number of palces you move the comma/ decimal point to the left

HOPE IT HELPED

Answer:

5.203

*I wrote the answer in decimal form*

When it says *and* that means u are adding a decimal point to ur number. Like this ( four and thirty-two hundredth = 4.32)

Answer:

Elsa earned the most

Ben earned the least

Step-by-step explanation:

E = Elsa's speed

B = Ben's speed

C = Cal's speed

The combined speeds are:

E + B = 1/11

E + C = 1/9

B + C = 1/9.9

If we add up all three equations:

2B + 2C + 2E = 10/33

B + C + E = 5/33

If we subtract each of the first three equations from the total equation, we can find the individual speeds.

C = 5/33 − 1/11 = 2/33

B = 5/33 − 1/9 = 4/99

E = 5/33 − 1/9.9 = 5/99

Ben and Cal paint together for 1 hour.  The fraction of the wall they paint is:

(1/9.9) × 1 = 10/99

Elsa, Ben, and Cal all paint together for the next 4.5 hours.  The fraction of the wall they paint is:

(5/33) × 4.5 = 15/22

Ben and Elsa then finish the job.  The amount of wall left is 1 − 10/99 − 15/22 = 43/198.  So the time it takes is:

(43/198) / (1/11) = 43/18 hours

The fraction of the wall that Ben paints is:

(4/99) (1 + 4.5 + 43/18) = 284/891

The fraction of the wall that Cal paints is:

(2/33) (1 + 4.5) = 1/3 = 297/891

The fraction of the wall that Elsa paints is:

(5/99) (4.5 + 43/18) = 310/891

Answer:

Ben earned the most as 6 of 16.5 as a percentage = (6*100):16.5 =36.36%

We check with Elsa and she earned the least as (5*100):16.5 =30.31%

Cal earned the average as 5.5 of 16.5 as a percentage = (5.5*100):16.5 =33.33%

Step-by-step explanation:

E + B = 11hrs    

E + C = 9hrs

B+C = 9.9 hrs

Lets say the house was 100ft sq

if E took 5.5 hrs

B took 5.5hrs  we would have 11

C took  3.5 hrs  we would have 9hrs for E+C

B took 5.5 hrs + 3.5hrs we are 0.9hrs short and see that B would need to take 0.9 more which means E works 0.9hrs less and shares 0.4 less with C having 0.5 less which gives B an extra 0.4 instead of 0.9

This equates to B: 5.9  , C:  3.9 ,  E: 5.1  

We can change to B: 6  , C: 3.94  , E: 5.4  

= E+B =  11.4  = 11  

= E+C = 8.99 = 9  

= B+C = 9.94  = 9.9

Percentages of fixed net pay when B: 6  , C: 3.94  , E: 5.4 = 6+ 3.94+ 5.4 = 100

Time when 15.34 hrs = 100% if working same rate changes to 16.5hrs to account for the hours given 8am-1.30pm 8am-1.30+ 9am-1.30+ =  minimum 1hr more = 2pm

Cal worked 8 am till 1.30 pm = 5.5hrs = 1.66hr extra

Ben worked 8am till 2pm = 6 hrs = 0 hr extra  together worked 11.5hrs

Elsa worked 9am till 2pm = 5 hrs = -0.4hr less

11.5+ 5 = 16.5 This equals 16.5hrs = 100%

Ben earned the most as 6 of 16.5 as a percentage = (6*100):16.5 =36.36%

Cal earned the average as 5.5 of 16.5 as a percentage = (5.5*100):16.5 =33.33%

We check with Elsa and she earned the least as (5*100):16.5 =30.31%   is the same as 100-69.67%

Answer:

  55 m²

Step-by-step explanation:

The arc length of a half-circle is πr, so the area of the curved surface is ...

  A = πrl = π(2.5 m)(7 m) = 17.5π m² ≈ 55 m²

Answer:

55m^2

aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

Answer: 16

Step-by-step explanation:

1. Add the numbers in the parenthesis (answer is 4).

2. Divide 8 by 2 (answer is 4).

3. Multiply 4 and 4.

Your answer is 16. Hope this helps. :)

Answer:

[tex] \boxed{ \boxed{ \bold{ \sf{16}}}}[/tex]

Step-by-step explanation:

[tex] \sf{8 \div 2(2 + 2)}[/tex]

Add the numbers

⇒[tex] \sf{8 \div 2 \times 4}[/tex]

Divide 8 by 2

⇒[tex] \sf{4 \times 4}[/tex]

Multiply the numbers

⇒[tex] \sf{16}[/tex]

Hope I helped!

Best regards!!

Answer: can you please post the expression

Step-by-step explanation:

Answer:

70 + 2 + 0.3 + (-30) + (-9) + (-0.1) = 70 + (-30) + 2 + (-9) + 0.3 + (-0.1)

Step-by-step explanation:

just took it

Answer:

198

Step-by-step explanation:

198

Answer:

496 is the third perfect number.

Divisors : 1, 2, 4, 8, 16, 31, 62, 124, 248, 496

Answer:

x=80

Step-by-step explanation:

because all lines intersect at point E, we could safety say they are equal. therefore, we can also say that angles aef+def=ceg+beg.

we already know what ceg+beg is; 160 and we also know what def is, which is 80.

we set up an equation plugging it in. we will say ceg=x.

x+80=160, subtract 80 on both sides and you get x=80!

hoped this helped :)

Answer:168

Step-by-step explanation:   First you do 82 times 3.75 which is 307.50. Then you do 2071.5 - 307.5 = 1764 Then you do 1764 divided by 10.50 which is 168

Answer:

168 adult tickets

Step-by-step explanation:

just checked it and got 100 on edge

Answer: Hi!

Each 3 is in a different place value. That's why they have different values.

Hope this helps!

Answer:

the three before the decimal is a whole number that equals 3.0, while the three after the decimal is a decimal equaling 0.003.

Step-by-step explanation:

Answer:2

Step-by-step explanation:

I think

Answer:

x= 10

Step-by-step explanation:

[tex]\frac{-2-2x}{3} =-8\\-2-2x=-24\\-2x= -24+2\\-2x=-20\\x=10[/tex]

Answer:

y = 4x + 7

Step-by-step explanation:

parallel = same slope

y = 4x + b

plug in (-4, -9)

-9 = 4(-4) + b

-9 = -16 + b

b = 7

y = 4x + 7

Answer:

7=4x+7

Step-by-step explanation:

To do this you would just plug in (-4,-9) into the equation y=mx+b so we would get -9=4(-4)+b when you simplify you will get -9=-16+b so we would add 16 to both sides and we would get 7=b so we would know that the y intercept is 7 and we know that if a line is parallel to another line is just has a different b so for our equation we would get 7=4x+7

Answer:10

Step-by-step explanation: this is a middle school question? lool

Answer:

The third answer. ( John's boat was farther from the deck at the beginning but Roberta's boat traveled more quickly)

Step-by-step explanation:

You already know that in the beginning John's boat begins 20 miles  from the dock. Now you need to find Roberta! When each boat begins from the dock, it means when x=0. So lets insert that! y= 6(0)+15. You get 15. Now you know that its either the 3rd or 4th answer.  The second piece of info you have for John is that it is 45 miles from the dock after 5 hours. Again, in the beginning it started with 20 miles. 45-20= 25 miles TRAVELED in 5 hours.  For Roberta, we need to insert 5 in the equation for x. y=6(5)+15. You get: 45 again! But... Roberta started at 15 miles. So 45-15 is 30 miles. She traveled 30 miles in 5 hours. The only answer that is matching to our problem solving is the third answer. Hope this helps!

Answer:

x = 13,

Step-by-step explanation:

they are diagonal angles so they are equal, so basically all you have to do is solve 8x+14=118, x = 13

Answer:

x = 13,

Step-by-step explanation:

$650

90% .............. $585

100% ............ $ x

x = 100×585/90

= 58500/90

= $650

Answer:527.5

Step-by-step explanation:

585-585×10%

585-58.5

527.5

Answer:

87

Step-by-step explanation:

8+7=15

reverse the digits to get 78.

8x6=48

48+30=78

(There are only 4 two-digit numbers that equal 15.  78, 87, 69, and 96. Only 87 fits these qualifications.)

Answer:

6

Step-by-step explanation:

Answer:

20,000

+

8,000

+

300

+

40

+

9

Step-by-step explanation:

Answer:

Ten

Step-by-step explanation:

Answer:

[tex]\frac{15}{2}[/tex] or 7.5 (they're the same)

Step-by-step explanation:

Answer:

[tex]7\frac{1}{2}[/tex]

Step-by-step explanation:

[tex]-3:-\frac{2}{5}= \\=-\frac{3}{1}*-\frac{5}{2}\\\\=\frac{-3*-5}{2}\\ \\=\frac{15}{2}\\ \\=7\frac{1}{2}[/tex]

Answer:

15<13

Step-by-step explanation:

Answer

original speed X=10

Step-by-step explanation:

We know that Speed= distance/ time

Then

time =distance/speed

We were told the cyclist travels 40 km at a speed of x km/h.

Which means

Distance= 40km

speed =x km/h

Then time t =40/x

Again we we were told his speed was

reduced by 2 km/h

Then speed= (x-2)

But the Distance is still 40km

But we were told the difference in time is 1 hour

Time t=40/(x-2)

Then if we find the difference between the time t of the first condition and second condition we have

40/(x-2) - (40/x) =1

[40x-40(x-2)]/ x(x-2)= 1

80=x(x-2)

x^2-2x-80=0

This is a quadratic equation , if we solve using factorization we have

(x+8)(x-10)

x+8=0 or x-10= 0

X= -8 or 10

But we cannot have a negative value for speed then

X=10

Therefore, original speedX=10

Answer:

x=10

Step-by-step explanation:

Answer: 66°

Step-by-step explanation: Triangle TVU is a mirror reflection of triangle QRS, so angle V is 56, angle T is 58, and angle U is 66

Answer:

66 becase all it is is its reflected or mirrored acrossed

Step-by-step explanation:

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