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3 years ago

12

The temperature of a city at sunset was -1 overnight,the temperature decreased by 11 what was the lowest temperature overnight i

n that city

1 answer:

docker41 [41]3 years ago

4 0

Answer:

-12

Step-by-step explanation:

-1 - 11 = -12

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At the movie theatre, child admission is $5.50 and adult admission is $8.90. On Friday four times as many adults tickets as chil

scoray [572]

Answer:

You can use grouping, quantity and value to solve this question.

Child admission = $5.50

Adult admission = $8.90

Friday sales (Quantity):

Child = x

Adult = 4x

Total sales = 5x

Friday sales (Value):

Child = $5.50

Adult = 4 × $8.90

= $35.60

Total sales = $986.40

1 group = $5.50 + $35.60

= $41.10

Number of groups = $986.40 ÷ $41.10

= 24

The number of child tickets sold is 24.

6 0

3 years ago

1.The volume of a cube is 3,944.312 cubic centimeters. Find the length of a side. Round your answer to the nearest 10th and writ

eduard

When finding the volume of a cube, you would multiply the length x width x height. To find the volume, you would cube the length of one of the sides. For this problem, think of it as working backward because you're starting with the volume but need to know the length of a side. To do the opposite (or inverse) of cubing, you would instead find the cube root of the volume. The cube root of 3,944.312 cubic cm would give you 15.8 cm.

The formula for the volume of a cylinder is <em>v = $\pi r^{2} h$ . </em>Take the numbers you are given in the problem and put them into the equation to get: <em>v + $\pi (3.2 x^{2} )(5)$ . </em>After calculation this equation, you will get an answer of 160.8495. Just round to the nearest tenth to get 160.8.

6 0

3 years ago

Please help me with this

tekilochka [14]

Answer:

CD= 34

Step-by-step explanation:

As CD is the diameter the circle divides to half and point E is on the circle ∴∠CED =90° (angle of a semi circle)

as CD is the diameter it would be the lengthiest of all ∴ CD is hypotenuse

so $CD =\sqrt{16^{2} + \sqrt{30^{2} } } }$

= CD= $\sqrt{256+900}$

=CD= $\sqrt{1156}$

∴CD=34

8 0

3 years ago

george is 2 years older than sam and sam is 3 years older than alex. the total of their ages is 35. write and solve the equation

Darina [25.2K]

This breaks down into a system of equations. George will equal G, Sam will equal S and Alex will equal A. G=S+2 S=A+3 G+S+A=35 since S=A+3, we can substitute S for (A+3). If we plug that into the G=S+2, we get G=(A+3)+2. This simplifies to G=A+5.

our ultimate goal is to be able to substitute for two of their ages so we can solve the last equation for one age or variable. It would be easiest to solve for A.

so far we can substitute for two variables, S=A+3. and G=A+5

Next, we can plug this into the last equation and get 35=(A+3)+(A+5)+A
if we add like terms we get 35=3A+8. Next, we solve the equation by first subtracting 8 from each side. we then get 27=3A, then we divide each side by 3 to solve for A and get A=9.

Now we have one age, we need to find the other two. We can solve this by plugging A to the other two equations. if we do that we get S=(9)+3, or S=12. If we do it to the other equation we get G=(9)+5, or G=14

So your final answer would be George is 14, Sam is 12, and Alex is 9.

5 0

4 years ago

Find the surface area of the pyramid .The surface of the pyramid is _ in2 (Type a whole number .)

garik1379 [7]

Given the figure of a square pyramid

The area pf the base =area of the square of side 14 in =

$14\cdot14=196in^2$

the area of the sides = 4 times the area of a triangle of a base of 14 in and a height of 12 in

so, the area of the sides =

$4\cdot\frac{1}{2}\cdot\text{base}\cdot\text{height}=4\cdot\frac{1}{2}\cdot14\cdot12=336in^2$

So, the surface area of the pyramid =

$196+336=532in^2$

So, the answer will be A = 532 in^2

7 0

1 year ago