2 years ago

Can u please help me on this plsss someone.... Type the answers and how to do it thx

Mathematics

2 answers:

kifflom [539]2 years ago

8 0

Shauna is 65 inches and ryan is 75
75+65 = 140

lesya [120]2 years ago

5 0

Shauna is 65 and ryan is 75

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1] If 221ₓ= 25₁₀ find X<br> 2] if 3ₓ + 34ₓ - 40ₓ = 0 find x<br> 3] if 23ₓ = 1111₂ find x

Olin [163]

$2\cdot x^2+2\cdot x^1+1\cdot x^0=25\\2x^2+2x+1=25\\2x^2+2x-24=0\\x^2+x-12=0\\x^2+4x-3x-12=0\\x(x+4)-3(x+4)=0\\(x-3)(x+4)=0\\x=3 \vee x=-4$

The base can't be negative, therefore $x=3$ .

$3\cdot x^0+3\cdot x^1+4\cdot x^0-4\cdot x^1+0\cdot x^0=0\\3+3x+4-4x=0\\x=7$

$2\cdot x^1+3\cdotx^0=1\cdot 2^3+1\cdot2^2+1\cdot2^1+1\cdot2^0\\2x+1=8+4+2+1\\2x=14\\x=7$

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1 year ago

Grandma Margie made 12 blankets for her grandkids. The ratio of striped to non striped blankets were 2:4. How many blankets were

solong [7]

Answer:

Total Ratio = 2+4

Striped blankets = 2/6 × 12

= 4 Striped Blankets

Step-by-step explanation:

Can't really explain

6 0

1 year ago

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goldenfox [79]

Answer:

Step-by-step explanation:

7 0

3 years ago

What number has factors that add up to thirty

NNADVOKAT [17]

29 = 1 * 29
1 + 29 = 30
thus answer is 29

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3 years ago

The volume of a cylinder is 81 cubic feet. What is the volume of a cone that fits exactly inside the cylinder? Provide an explan

expeople1 [14]

V ( cylinder ) = r² π h
V ( cone ) = 1/3 r² π h
A cone that fits exactly inside the cylinder has the volume:
V ( cone ) = 1/3 V ( cylinder = 1/3 · 81 = 27 ft³

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3 years ago