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KiRa [710]
3 years ago
15

Simplify: a) a x b x a = b) 4 x b x 2 x a = c) 4a x 8b = d) 15b ÷ 3a =

Mathematics
1 answer:
meriva3 years ago
7 0
A)
a \times b \times a = \boxed{\bf{a^2 \times b}}

b)
4\times b\times 2\times a = \boxed{\bf{8ab}}

c)
4a \times 8b = \boxed{\bf{32ab}}

d)
15b\div 3a = \boxed{\bf{\frac{5b}{a}}}
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Someone help me its timed!!!
Lelechka [254]

Answer:

C!

Step-by-step explanation:

7 0
2 years ago
The interior angle sum of a convex polygon is 2.520 How many sides does the polygon<br> have?
wel

Complete Question

The interior angle sum of a convex polygon is 2520.How many sides does the polygon have?

Answer:

16 sides

Step-by-step explanation:

The sum of angles in a polygon formula is given as:

(n - 2)180°

Where n = Number of sides of the polygon

Hence:

(n - 2)180°= 2520°

Divide both side by 180°

(n -2) = 2520/180

n - 2 = 14

n = 14 + 2 = 16

Therefore the number of sides the convex polygon has 16 sides.

7 0
2 years ago
What is the value of x in the equation - x=-1802<br> -256<br> 0-100<br> 100<br> 256
lapo4ka [179]

Answer:

256

Step-by-step explanation:

6 0
3 years ago
Consider a binomial experiment with n trials and r successes. To construct a test for a proportion p, what value do we use for t
madam [21]

Answer:

value we use for z value of  sample test  is r/n

Step-by-step explanation:

Given data

proportion p

trials  = n

successes = r

to find out

what value we use for z value of  sample test

solution

here

we know that

Probability of a success in single trail test = Number of successes/Number of trails

Probability of a success in single trail = r / n

so that

value we use for z value of  sample test  is r / n

3 0
3 years ago
Mason bought 6 loaves of bread and 3 packages of cheese for a total of $27. The cost of a package of cheese is $1.50 more than t
Ksju [112]

Answer:

The combined cost of one loaf of bread and one package of cheese is $6.5

Step-by-step explanation:

Given :

Mason bought 6 loaves of bread and 3 packages of cheese for a total of $27.

The cost of a package of cheese is $1.50 more than the cost of a one loaf of bread.

To Find :The combined cost of one loaf of bread and one package of cheese.

Solution :

Let cost of one loaf of bread is $x.

Cost of 6 loaves of bread = $6x.

Let cost of one package of cheese is $y.

Cost of 3 packages of cheese = $3y.

Since we are given that combined cost of 6 loaves of bread and 3 packages of cheese is $27.

⇒ 6x + 3y = 27  ----(A)

We are also given that the cost of a package of cheese is $1.50 more than the cost of a one loaf of bread.

⇒y = x + 1.50 ----(B)

Solving (A) and (B) using substitution method

Substitute value of y from (B) in (A)

⇒6x + 3(x + 1.50 ) = 27

⇒6x +3x +4.5 = 27

⇒9x + 4.5 = 27

⇒9x = 27-4.5

⇒9x = 22.5

⇒x = 22.5/9

⇒x = 2.5

Thus, The cost of one loaf of bread 'x' = $2.5

Substitute this value of x in (B) to get cost of one package of cheese 'y'

⇒y =2.5 + 1.50

⇒ y = 4

Thus, The cost of one package of cheese 'y' = $4

Thus the combined cost of one loaf of bread and one package of cheese i.e. x + y = $2.5+$4 =$6.5

Hence , The combined cost of one loaf of bread and one package of cheese is $6.5

5 0
3 years ago
Read 2 more answers
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