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3 years ago

Please help! Will mark brainliest!

Mathematics

1 answer:

belka [17]3 years ago

6 0

Answer:

Step-by-step explanation:

which one

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HELP ME PLEEEEEEAAAASEEEE!

Archy [21]

Answer:

$2\frac{1}{2}\ liters$

Step-by-step explanation:

step 1

Convert mixed number to an improper fraction

$1\frac{1}{5}=\frac{1*5+1}{5}=\frac{6}{5}$

step 2

Using proportion

$\frac{3}{(6/5)}\frac{liters}{doors} =\frac{x}{1}\frac{liters}{door}\\ \\x=3/(6/5)\\ \\x=15/6\ liters$

step 3

Convert to mixed number

$\frac{15}{6}\ liters=\frac{12}{6}+\frac{3}{6}=2\frac{1}{2}\ liters$

8 0

3 years ago

Tom has a water tank that holds 5 gallons of water.Tom uses water from a full tank to fill 6 bottles that each hold 16 ounces an

REY [17]

1/2 Gallon is equal to 64 ounces
16 x 6 = 96
96 + 64 = 160
5 gallons is equal to 640
640 - 160 = 480

7 0

4 years ago

Hi!! Please help me! Need answers with explanation! 15 points!

olganol [36]

Answer:

1. Simplify the expression.

29m - 15

_______

2. 11 (5x + y)

________

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

Sam solved the equation 2(x - 4) = 4x + 3x + 12. His work is shown.

Paha777 [63]

Step 2 because he/she took out the parentheses when he/she wasn’t supposed to!

8 0

3 years ago

Solve for x. 8^2x −3 = ( 1 16 )^x − 2 plz help

azamat

Answer:

$\large\boxed{x=\dfrac{17}{10}=1.7}$

Step-by-step explanation:

$8=2^3\\\\\dfrac{1}{16}=\dfrac{1}{2^4}=2^{-4}\qquad\text{used}\ a^{-n}=\dfrac{1}{a^n}\\\\8^{2x-3}=\left(\dfrac{1}{16}\right)^{x-2}\\\\(2^3)^{2x-3}=(2^{-4})^{x-2}\qquad\text{use}\ (a^n)^m=a^{nm}\\\\2^{3(2x-3)}=2^{-4(x-2)}\iff3(2x-3)=-4(x-2)\\\\\text{use the distributive property}\ a(b+c)=ab+ac\\\\(3)(2x)+(3)(-3)=(-4)(x)+(-4)(-2)\\\\6x-9=-4x+8\qquad\text{add 9 to both sides}\\\\6x=-4x+17\qquad\text{add 4x to both sides}\\\\10x=17\qquad\text{divide both sides by 10}\\\\x=1.7$

6 0

3 years ago