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4 years ago

URGENT EASY MATH PLEASE

Mathematics

1 answer:

Trava [24]4 years ago

7 0

Answer:

Step-by-step explanation:

Let's solve your inequality step-by-step.

8x−7≤−6−(1−8x)

Step 1: Simplify both sides of the inequality.

8x−7≤8x−7

Step 2: Subtract 8x from both sides.

8x−7−8x≤8x−7−8x

−7≤−7

Step 3: Add 7 to both sides.

−7+7≤−7+7

0≤0

Answer:

All real numbers are solutions.

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Kim is 5 years older than her brother Jack. If the sum of their ages is 21, find each of their ages.

yarga [219]

9514 1404 393

Answer:

Kim is 13
Jack is 8

Step-by-step explanation:

Let k represent Kim's age. Then Jack's age is k-5 and the total of their ages is ...

k + (k -5) = 21

2k = 26 . . . . . . . add 5, collect terms

k = 13 . . . . . . . . . divide by 2; Kim's age

k -5 = 8 . . . . . . . Jack's age

Kim is 13; Jack is 8.

7 0

3 years ago

Kayla has 18 bottles of bubbles. She wants to give 2 bottles to each of her 6 friends. How many bottles will she have left over?

FrozenT [24]

Answer:

Step-by-step explanation:

You started with 18 and you multiply 6×2 and you get 12 able your answer is 6 I believe. sorry if I'm wrong

3 0

3 years ago

Read 2 more answers

prove that the quadrilateral whose vertices are the points A(-1,1), B(-3,4), C(1,5) and D(3,2) is a parallelogram.

Vsevolod [243]

Answer:

Since $\overrightarrow{AB} = \overrightarrow{DC}$ and $\overrightarrow{AD} = \overrightarrow{BC}$ , then the quadrilateral ABCD is a parallelogram.

Step-by-step explanation:

First, we label each point of the quadrilateral with the help of a graphing tool. If the quadrilateral ABCD is a parallelogram, then $\overrightarrow{AB} = \overrightarrow{DC}$ and $\overrightarrow{AD} = \overrightarrow{BC}$ . If we know that $A(x,y) =(-1, 1)$ , $B(x,y) =(-3,4)$ , $C(x,y) = (1,5)$ and $D(x,y) = (3,2)$ , then the measure of each vector is, respectively:

$\overrightarrow{AB} = (-3,4)-(-1,1)$

$\overrightarrow{AB} = (-2, 3)$

$\overrightarrow{DC} = (1,5)-(3,2)$

$\overrightarrow{DC} = ( -2,3)$

$\overrightarrow{AD} = (3,2)-(-1,1)$

$\overrightarrow{AD} = (4, 1)$

$\overrightarrow{BC} = (1,5)-(-3,4)$

$\overrightarrow{BC} = (4, 1)$

Since $\overrightarrow{AB} = \overrightarrow{DC}$ and $\overrightarrow{AD} = \overrightarrow{BC}$ , then the quadrilateral ABCD is a parallelogram.

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3 years ago

A secret code consists of 3 digits, followed by 2 letters, followed by 1 of the following symbols: @

WINSTONCH [101]

The answer is B hope this helps

4 0

3 years ago

The coordinates of the vertices of ΔDEF are D(2, 3), E(l, 1), and F(4, O).Find the coordinates for the image of ΔDEF after the t

spayn [35]

The translation <u>3 units to the right and 2 units down the plane</u> will result in the coordinates D' (-1, 1),E'(-2, -1) and F' (1, -2)

<h3>
Translation of coordinates</h3>

Translation is a transformation technique used to change the position of an object on an y-plane.

For instance translating a coordinate (x, y) into (x-3,y -2) means a shift of the image <u>3 units to the right and 2 units down the plane. In </u>order to get the corresponding coordinates, we will subtract 3 from the x-coordinates and 2 from the y-coordinates.

Given the coordinate of the triangle DEF as shown;

ΔDEF

D(2, 3),

E(l, 1), and;

F(4, O)

The translation <u>3 units to the right and 2 units down the plane</u> will result in the coordinates D' (-1, 1),E'(-2, -1) and F' (1, -2)

Learn more on translation here: brainly.com/question/12861087

#SPJ1

8 0

1 year ago