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SpyIntel [72]
3 years ago
12

Every day Katie looks at the seashells on the beach.she has 28 shells in her collection.katie finds 12 more shells each day

Mathematics
1 answer:
Strike441 [17]3 years ago
8 0

Answer:

the answer is 40 because all you are doing is adding two place vaule numbers


Step-by-step explanation:


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Please help me I have 10 minutes no scams I’m in 7th grade
dangina [55]

Answer:

The answer is 37

Step-by-step explanation:

180- 143= 37

6 0
3 years ago
Please help fast geometry !!
kotegsom [21]

Answer:

1733.28

Step-by-step explanation:

we want to find the surface area of the cylinder

We are given:

diameter = 12in

height = 40in

formula to find surface area of a cylinder: SA = 2πr^2 + 2πrh (where h = height and r = radius)

in order to find the SA of a cylinder we need to know the radius

we are given that the diameter is 12

we can acquire the measure of the radius by dividing the diameter by 2 ( this is because the radius is equal to half of the diameter )

so r = 12/2 = 6

now to find the surface area,

we simply plug in the values of the radius and height into the SA of a cylinder formula

SA = 2πr^2 + 2πrh

r = 6

h = 40

( note it says use 3.14 for π )

substitute values

SA = 2(3.14)(6)^2 + 2(3.14)(6)(40)

if you plug this into a calculator you get that the surface area is 1,733.28

6 0
3 years ago
What is an algebraic expression for 5 times the sum of a number and 1
Lady_Fox [76]
5 times the sum of a number and 1 would be:
5 • (n+1)
6 0
3 years ago
A doggy daycare takes care of 25 dogs on Friday. But on Saturday 3 more dogs join the group. What percent increase was that?
True [87]

Answer:

12%

Step-by-step explanation:

do 3 divided by 25 and you will get the percentage.  

3/25 = 0.12 move the decimal over 2 plaves and boom you got it

4 0
3 years ago
the measure of angle 1 is twice the measure of angle 2, and angle 1 and angle 2 are linear pair. Find the measure of angle 1.
Ipatiy [6.2K]

Answer:

m<1=120

Step-by-step explanation:

A linear pair adds up to 180 degrees.

So <1+<2=180

Let <2=X, that would make <1=2X because <1 is 2 times more.

So substitute that into the equation.

2x+x=180.

Combine like terms and get 3x=180

Divide both sides by 3 and get x=60.

Substitute that into <1 and get <1=120

8 0
3 years ago
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