Ask question

Ask question

All categories

3 years ago

6

- 2x - 147 = 123 + 7x

2 answers:

k0ka [10]3 years ago

7 0

-2x - 147 = 123 + 7x
Add 147 on both sides
-2x = 270 + 7x
Subtract 7x on both sides
-9x = 270
Divide -9x on both sides
X = -30

worty [1.4K]3 years ago

6 0

Answer:

<h2>x = -30</h2>

Step-by-step explanation:

$-2x-147=123+7x\qquad\text{add 147 to both sides}\\\\-2x-147+147=123+147+7x\\\\-2x=270+7x\qquad\text{subtract }\ 7x\ \text{from both sides}\\\\-2x-7x=270+7x-7x\\\\-9x=270\qquad\text{divide both sides by (-9)}\\\\\dfrac{-9x}{-9}=\dfrac{270}{-9}\\\\x=-30$

You might be interested in

Pa help po thank you:))

Flura [38]

Answer:

here are some examples of quadrilateral things( just pick 2), pinili ko sila dahil lahat sila ay rectangle( which i believe is one of the types of quadrilaterals):

- A (wooden) door

- A bill( 100 pesos or 1 dollar bill, whatever currency you use).

- A T.V.

- A Laptop

- A book

_______________________ follow the format:

" <em>(choose 2 from above)</em> A _______ and a _______ are examples of a two- dimensional shape or quadrilateral, which means they have 4 straight sides, 4 angles and 4 vertices. Both ______ and _______ are classified as rectangle because both opposite sides are equal."

there you go! i hope you pass and thank me later:)

5 0

3 years ago

Three friends each have some ribbon,carol has 42 inches of ribbon, Tina has 2.5 feet of ribbon, Baxter has 1.5 yards of ribbon.

Doss [256]

Answer:

126 inches

Step-by-step explanation:

To express the total length of ribbon convert the three lengths into the same measurement of inches.

Carol has 42 inches.

Tina has 2.5 feet which is equal to 24+6=30 inches.

Baxter has 1.5 yards which is equal to 36+18 =54 inches.

This means in total there is 42 + 30 + 54= 126 inches

7 0

3 years ago

Lucy is knitting a blanket and needs to buy some more yarn. At her local craft store, 2 skeins of yarn cost $7 and 8 Skeins of y

Gemiola [76]

Answer:

$y = 3.5x$

Where y is the cost and x is the number of skeins of yarn.

Step-by-step explanation:

To model this situation we can use the linear equation:

$y = ax + b$

Where y is the cost, x is the number of skeins of yarn, a is the slope of the equation and b is the y-intercept.

If 2 skeins of yarn cost $7, we have that:

$7 = 2a + b$

If 8 skeins of yarn cost $28, we have that:

$28 = 8a + b$

Multiplying the first equation by 4 and subtracting the second equation from it, we have:

$4*7 - 28 = 4*(2a + b) - 8a - b$

$28-28 = 8a + 4b - 8a - b$

$0 = 3b$

$b = 0$

Now, finding the value of a, we have:

$7 = 2a + b$

$7 = 2a + 0$

$a = 3.5$

So our equation is:

$y = 3.5x$

6 0

3 years ago

Find the volume of a rectangular prism with length 32 feet width 50 feet and height 100 feet? Please hurry!

nata0808 [166]

Answer:

c

Step-by-step explanation:

5 0

4 years ago

Diego predicts that his basketball team has a 23 probability of winning each of their next 7 games. Select two ways Diego could

iVinArrow [24]

Answer:

(c) and (e)

Step-by-step explanation:

Given

$Pr = \frac{2}{3}$

Required

Which 2 options can be used to simulate the given probability.

The two options are (c) and (e)

The proof is as follows;

Option (c)

We have:

$Rolls = 7$

A cube has 6 faces. So:

$S = \{1,2,3,4,5,6\}$

$n(S)=6$

The probability of getting ones, twos, threes, and fours is:

$Pr = \frac{n(1,2,3,4)}{n(S)}$

In: $S = \{1,2,3,4,5,6\}$

$n(1,2,3,4) = 4$

So:

$Pr = \frac{4}{6}$

Simplify

$Pr = \frac{2}{3}$

Option (e)

We have:

$White = 10$

$Red = 5$

$Count = 7$

Record the probability of white.

This is calculated as:

$Pr = \frac{White}{Total}$

$Pr = \frac{White}{White + Red}$

$Pr = \frac{10}{10+5}$

$Pr = \frac{10}{15}$

Simplify

$Pr = \frac{2}{3}$

6 0

3 years ago