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4 years ago

Can someone give me a hand

Mathematics

1 answer:

Brilliant_brown [7]4 years ago

4 0

one angle is marked as 124 degrees.

The opposite angle would also be 124

so now you have 124 + 124 = 248 degrees

total interior angles = 360

360 - 248 = 112 degrees left

so z & y = 112/2 = 56 degrees

y = 56/2 = 28 degrees

please mark brainliest.

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The skate Sports Store offers 4-wheel and 5-wheel inline skates. On display in the store are the left skates for 17 different st

beks73 [17]

There are 6 skates in store with 5 wheels.

<h3>What is Equation?</h3>

Equations are mathematical statements containing two algebraic expressions on both sides of an 'equal to (=)' sign.

Here, Let the number of 4 wheel skates in display be x

and the number of 5 wheel skates in display be y

Total number of skates = 17

Total number of wheel = 74

Now, according to question

x + y = 17 ................(i)

4x + 5y = 74 ..................(ii)

From equation (i), we get

x = 17 - y ................(iii)

put the value of y in equation (ii), we get

4(17 - y) + 5y = 74

68 - 4y + 5y = 74

y + 68 = 74

y = 6

Put the value of y in equation (iii), we get

x = 17 - 6

x = 11

Thus, there are 6 skates in store with 5 wheels.

Learn more about Equation from:

brainly.com/question/10413253

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6 0

2 years ago

One positive number is 9 more than twice another. If their product is 95, find the numbers.

mafiozo [28]

Answer:

The numbers are 19 and 5

Step-by-step explanation:

Given

Let the numbers be $x\ and\ y.$

So:

$x = 9 + 2y$ --- First statement

$x*y = 95$ --- second statement

Required

Find x and y

Substitute $x = 9 + 2y$ in $x*y = 95$

$(9 + 2y) * y = 95$

$9y + 2y^2 = 95$

Rewrite as:

$2y^2 + 9y - 95 = 0$

Expand

$2y^2 -10y +19y- 95 = 0$

Factorize

$2y(y -5) +19(y- 5) = 0$

$(2y +19)(y- 5) = 0$

Solve for y

$2y + 19 =0$ or $y - 5 = 0$

$2y = -19$ or $y = 5$

$y = -\frac{19}{2}$ or $y=5$

Since the numbers are positive, we take only:

$y=5$

Substitute $y=5$ in $x = 9 + 2y$

$x = 9 + 2 * 5$

$x = 9 + 10$

$x = 19$

<em>The numbers are 19 and 5</em>

5 0

3 years ago

What is the circumstance of the circle 5cm

MakcuM [25]

Answer:

31.4 cm

Step-by-step explanation:

5x3.14x2 = 31.4 cm

3 0

3 years ago

a food truck sells salads for 6.50 each and drinks for 2.00 each. The food truck's revenue from selling a total of 209 salads an

kati45 [8]

S+d=209
d=209-s
6.5s+2d=836.5
6.5s+2(209-s)=836.5
6.5s+418-2s=836.5
4.5s+418=836.5
4.5s=418.5
s=93

There were 93 salads sold that day.

4 0

3 years ago

Three brothers have ages that are consecutive even integers. the product of the first and third boys' ages is 20 more than wice

vladimir1956 [14]

Let the first brother = x
second brother = x + 2
third brother = x + 4

<span>The product of the first and third boys' ages is 20 more than twice the second boy's age:

x(x+4) = 2(x+2) + 20
x</span>² + 4x = 2x + 4 + 20
x² + 4x - 2x - 24 = 0
x² + 2x - 24 = 0
(x - 4)(x + 6) = 0
x = 4 or -6 (rejected, age cannot be negative)

First brother = 4
Second brother = 4 + 2 = 6
Third brother = 4 + 4 = 8

The three boys are 4, 6, and 8 years old.

6 0

3 years ago

Read 2 more answers