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4 years ago

1. If we had two angles that are complementary and <1 = 55 degrees, what is the measure of the second angle?

Mathematics

1 answer:

iVinArrow [24]4 years ago

4 0

Two angles are complementary if they sum to 90°. So, if one angle is 55, the other angle must be such that

$55+x=90$

Similarly, two angles are supplementary if they sum to 180°. So, if one angle is 10, the other angle must be such that

$10+x=180$

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Matthew currently has enough money to buy 45 toy cars. If the cost of each car was 10 cents less, Matthew could buy 5 more cars.

aliina [53]

x=price per toy car
45x = money Matt has
45x =50(x-.1)
45x =50x -5
5 =5x
x=$1
45x= $45
the cost of each car is $1

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4 years ago

X 2 + 13x + 40 = 0 solving quadratic

Gnesinka [82]

Answer: x=-5 or x=-8

Step-by-step explanation:

x^2+13x+40=0

x^2 + 8x + 5x +40=0

x(x+8)+5(x+8)=0

(x+5)(x+8)=0

x+5=0 or x+8=0

x=-5 or x=-8

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4 years ago

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Zakai cuts a piece of birthday cake as shown below. What is the volume of the piece of cake?

marishachu [46]

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4 years ago

Two kilos of taronges and three kilos of mandarins cost 11.50 euros. Three kilos of taronges and two of mandarins cost 11 euros.

Illusion [34]

Answer:

Hence the pricing for each product will be taronges with 2 euros and mandarins with 2.5 euros.

Step-by-step explanation:

Given:

2 kg of taronges and 3 kg mandarins cost 11.5 euros

3kg taronges and 2 kg mandarins cost 11 euros

To Find:

Price for each product

Solution:

Consider 

Taronges =x euros

Mandarins=y euros

So by given condition,

$2x+3y=11.5$ ....................equation(1)

and $3x+2y=11 ...$ ...........equation (2)

So , using substitution method,

$3x=11-2y$

$x=11-2y/3$ .......equation (3)

Using above value in equation(1) we get ,

$2(11-2y)/3+3y=11.5$

$y=(11.5*3-22)/5$ )

y=2.5 euros

Using above value in equation(3) we get ,

$x=(11-2y)/3$

$x=(11-2*2.5)/3$

$x=(11-5)/3$

x=2 euros

5 0

4 years ago

4+5m = ? I don't need this answer, but what order would I do this problem as if m=3.

german

You know m=3

so you can substitute that into your expression "4+5m"

4+5m
4+5 x 3
using pemdas
4+15
19
4+5m=19 if m=3

7 0

4 years ago

Read 2 more answers