3 years ago

Solve the inequality -7+2x<_1 where x equals an integer. (How do you get the answer?)

Mathematics

1 answer:

TEA [102]3 years ago

3 0

Assuming that the <_ means ≤, we can add 7 to both sides, to get 2x≤8. Dividing both sides by 2, we get x≤4

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A tortoise is walking in the desert. It walks at a speed of

NARA [144]

Hope this helps you!

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3 years ago

Urgent ! <br>i can't seem to solve this :(

Archy [21]

Answer: 15 cm to the highest total ; amount of triangles: 25

Step-by-step explanation: for the height just add 3 cm until you reach the top, which will give you 15 cm

for the amount just count them and for the top top layer count up to 9, which will give you 25 triangles.

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3 years ago

Stefan sells Jin a bicycle for $147 and a helmet for $18. The total cost for Jim is 150% of what Stefan spent originally to buy

soldi70 [24.7K]

Answer:

He spent $110.00 on both originally

Step-by-step explanation:

Add both prices too get 165

Then use the equation $\frac{150}{100}$ = $\frac{165}{x}$

cross multiply to get 150x=16500

Divide 16500 by 150 to get x alone

x= 110

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3 years ago

The profits in hundreds of dollars, P(c), that a company can make from a product is modeled by a function of the price, c, they

Jobisdone [24]

The maximum profit is the y-coordinate of the vertex of the parabola represented by the equation.

$P(c)=-20c^2+320c+5120 \\ \\
a=-20 \\
b=320 \\ \\
\hbox{the vertex } (h,k): \\
h=\frac{-b}{2a}=\frac{-320}{2 \times (-20)}=\frac{-320}{-40}=8 \\
k=f(h)=f(8)=-20 \times 8^2+320 \times 8+5120= \\
=-1280+2560+5120=6400$

The maximum value is 6400, but the profit is given in hundreds of dollars, so multiply the value by 100.

The maximum profit the company can make is $640,000.

4 0

3 years ago

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Which is the side length of a cube with a volume of 2744 cm3?<br><br> Please help

Elis [28]

$\sf~V=a^3$

Plug in what we know:

$\sf2744=a^3$

Find the cube root of both sides:

$\sf~a=\sqrt[3]{2744}$

Simplify:

$\sf~a=\boxed{\sf14}$

3 0

3 years ago

Read 2 more answers