3 years ago

Tania creates a chain letter and sends it to

Mathematics

1 answer:

Troyanec [42]3 years ago

7 0

Answer:

Step-by-step explanation:

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A cashier collects 124 bills totaling $920 dollars. Assuming that the cashier collects $5, $10, and $20 bills, and that she coll

musickatia [10]

Let the no. of $10 bills be x, the no. of $5 bills be 2x, and the no. of $20 bills be y.

<span>A cashier collects 124 bills => x + 2x + y = 124 => 3x +y =124

</span>totaling $920 dollars => ($10)(x) + ($5)(2x) + ($20)(y) = $920 => 20x + 20y = 920

Now you got 2 equations :
3x +y =124 &
20x + 20y = 920

3x +y =124 => y=124-3x
Then Sub y=124-3x into 20x + 20y = 920,
ie. 20x + 20(124-3x) = 920
20x + 2480 - 60x = 920
2480 - 40x = 920
2480 - 920 = 40x
1560 = 40x
x = 39

6 0

4 years ago

A parallelogram is graphed on a coordinate plane so that two points are in the first quadrants and two points are in the third q

nexus9112 [7]

Answer:

I am so confused I give up

Step-by-step explanation:

7 0

4 years ago

Given the polynomial, 8x^2 + 3x - 5, identify the following:

vovikov84 [41]

Answer:

Part A) The polynomial has three terms

Part B) The terms are $8x^{2} , 3x\ and\ -5$

Part C) Is a 2nd degree polynomial

Part D) The name of the polynomial is a 2nd degree trinomial

Step-by-step explanation:

we know that

Polynomials can be classified two different ways - by the number of terms and by their degree.

we have

$8x^{2} +3x-5$

The polynomial has three terms

The terms are

$8x^{2} , 3x\ and\ -5$

therefore

The polynomial is a trinomial

The degree of the polynomial is found by looking at the term with the highest exponent on its variable(s).

The term is $8x^{2}$

The highest exponent is the 2 so this is a 2nd degree polynomial

therefore

The name of the polynomial is a 2nd degree trinomial

8 0

4 years ago

Given f(x)=x^2 +4x and g(x)= 2x +3 , evaluate each expression. f(g(2.5))

nydimaria [60]

Answer:

g(2.5)= 2(2.5)+3

= 8

f(g(2.5))= f(8)=8^2+4*8

=16+ 32

= 48

4 0

3 years ago

Pls answer this asap

Serga [27]

Answer:

its c or d

Step-by-step explanation:

6 0

3 years ago