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pshichka [43]
2 years ago
6

Which statement is true? Select all that apply.

Mathematics
1 answer:
julsineya [31]2 years ago
3 0
It’s b and c and i believe a
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What is the gcf of 40 and60
Nostrana [21]
20 is the gcf ofn40 and 60
5 0
3 years ago
Write 0.87 as a fraction in simplest form.
TEA [102]
Write the decimal number as a fraction
(over 1)
0.87 = 0.87 / 1

Multiplying by 1 to eliminate 2 decimal places
we multiply top and bottom by 2 10's

Numerator (N)
N = 0.87 × 10 × 10 = 87
Denominator (D)
D = 1 × 10 × 10 = 100

N / D = 87 / 100

Simplifying our fraction

= 87/100

<span>= 87/100</span>
8 0
3 years ago
The sum of two numbers is 54 . the smaller number is 12 less than the larger number. what are the numbers?
Andreas93 [3]
<span>Let x=one number and x+12= the other number.  Together the numbers=54.  Set up the equation:  x+x+12=54;  Combine the variables;  2x+12=54;  Subtract 12 from both sides of the equation;  2x=42; Divide both sides of the equation by 2;  x=21 is one number and 21+12=33 is the other number.  Check:  2(21) +12=54;  42+12=54;  54=54.</span>
5 0
3 years ago
What is the surface area of this triangular pyramid?<br> ___square inches
IrinaVladis [17]

Answer:

Surface area = 10.7 in.²

Step-by-step explanation:

Surface Area of triangular pyramid = BA + P*L

Base Area (BA) = ½*nh

b = 2 in.

h = 1.7 in.

BA = ½*2*1.7 = 1.7 in.²

Perimeter (P) = 2 + 2 + 2 = 6 in.

Slant height (L) = 3 in.

Plug in the values

Surface Area = 1.7 + ½*6*3

Surface area = 10.7 in.²

5 0
3 years ago
You are inviting 30 friends to a party. You know that each person eats, on average,
nika2105 [10]

Answer:

11.25 pizzas

Step-by-step explanation:

We are given that:

There are 30 friends total

Each eat 3 slices

1 pizza has 8 slices

So, with the given information, you can know that

Number of slices pizza that all 30 friends eat = 30*3 = 90 slices

Each pizza have 8 slices so we need 90 slices so we need in total of:

Number of pizzas need = 90/8 = 11.25 pizzas

Hope this help you :3

8 0
3 years ago
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