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3 years ago

Can someone plz help me answer this asap due today plz 8+x−6−5=8x+1−3x

Mathematics

2 answers:

sladkih [1.3K]3 years ago

5 0

Insolate the variable by dividing each side
X=-1

kykrilka [37]3 years ago

4 0

Isolate the variable by dividing each side by factors that don't contain the variable.
x = −1

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Find the measure of f.

lora16 [44]

………….The answer is 46

5 0

2 years ago

An item costs $390 before tax, and the sales tax is $35.10. Find the sales tax rate. Write your answer as a percentage.

DanielleElmas [232]

Answer:

Use this pencentage change formula:

New - Old

---------------- x 100

Old

Step-by-step explanation:

390 + 35.10 = 425.1 (New value)

So apply this to the formula:

425.1 - 390

--------------- x 100

390

Which is = 9%

Hope it helps. Cheers! :)

7 0

2 years ago

A cafeteria starts with 750 fish sticks for lunch. Each meal they serve uses 6 of the fish sticks. At the end of the lunch there

Firlakuza [10]

Answer:

The value of N = 118

Step-by-step explanation:

750 = 6n + 42

move all the numbers that don't contain n to the right side

6n = 750 - 42

6n = 708

708 / 6 = 118

n = 118

plug the numbers back in

6 ( 118) = 708

708 = 708

plug the 42 back in

708 + 42 = 750

8 0

2 years ago

I will mark you brainliest if you provide evidence you know what your doing

topjm [15]

Option C

SOLUTION:

We need to find the value of B - CF

First find the value CF:

$CF=\left[\begin{array}{ccc}12&0&1.5\\1&-6&7\\\end{array}\right] \left[\begin{array}{ccc}-2&0\\0&8\\2&1\end{array}\right]$

$CF=\left[\begin{array}{ccc}12(-2)+0 *0+1.5*2&12*0+0.8+1.5*1\\1*(-2)+(-6)*0+7.2&1*0+(-6)*8+7.1\\\end{array}\right]$

$CF=\left[\begin{array}{ccc}-21&1.5\\12&-41\\\end{array}\right]$

Now find value of B - CF:

$B-CF=\left[\begin{array}{ccc}2&8\\6&3\\\end{array}\right] -\left[\begin{array}{ccc}-21&1.5\\12&-41\\\end{array}\right]$

$B-CF=\left[\begin{array}{ccc}23&6.5\\-6&44\\\end{array}\right]$

∴ the value of B - CF is $\left[\begin{array}{ccc}23&6.5\\-6&44\\\end{array}\right]$

I hope this helps....

8 0

3 years ago

A kite flying in the air has a 12 - ft line attached to it. its line is pulled taut and casts a 10 - ft shadow. find the height

tekilochka [14]

The height of the kite will be 6.6 ft rounded to the nearest tenth.

Explanation

According to the below diagram, AB is the height of the kite and AC is the 12 ft line attached to it.

The line is pulled taut and casts a 10 ft shadow. That means BC = 10 ft

Now, in right angle triangle ABC, using Pythagorean theorem....

$(AB)^2 +(BC)^2 = (AC)^2 \\ \\ (AB)^2 +(10)^2 = (12)^2 \\ \\ (AB)^2 +100 = 144\\ \\ (AB)^2 = 144-100 =44\\ \\ AB=\sqrt{44}= 6.6332....$

So, the height of the kite will be 6.6 ft rounded to the nearest tenth.

6 0

3 years ago