3 years ago

What is 3 and 1 fifth subtracted by 1 and 2 fifths

Mathematics

1 answer:

Alex Ar [27]3 years ago

5 0

1 and 4/5. there is a website called 'webmath' that can help with that!

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Plzzzzzzzzzzzzz help

bija089 [108]

Answer:

i think it's circumference

Step-by-step explanation:

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3 years ago

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Isabel deposits $6,000 into an account that earns 1.5% interest compounded monthly. Assuming no more deposits and no withdrawals

aleksandrvk [35]

Fv=6,000×(1+0.015÷12)^(48)
Fv=6,370.78

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4 years ago

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20x^2-30=4x solve for x

ankoles [38]

Answer:

x=1.3288 or -1.1288

Step-by-step explanation:

Given $20x^{2}-30=4x$

Subtract 4x from both sides

$20x^{2}-4x-30=0$

Since we can factor out 2 from whole equation, let's factor out 2.

$2(10x^{2}-2x-15)=0$

Divide with 2 on both sides

$10x^{2}-2x-15=0$

We got the quadratic equation, we can solve for x using quadratic formula.

$x=\frac{-b\pm\sqrt{b^{2}-4ac} } {2a}$

$x=\frac{2\pm\sqrt{2^{2}-4X10X(-15)} } {2X10}$

$x=\frac{2\pm\sqrt{604} }{20}$

$x=\frac{2\pm2\sqrt{151}}{20}$

$x=1.3288or-1.1288$

8 0

3 years ago

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What is 4⁹+ 4⁷ =<br> I need help I can’t figure this out

rewona [7]

Answer:

278528

Step-by-step explanation:

1st we need to get the 1st 2 values of exponets

4 to the power of 9 is 4x4 9 times and that's 262144,

4 to the power of 7 is 4x4 7 times and that's 16384

16,384 + 262,144 is 278528

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3 years ago

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Evaluate 7j+5-8k when j=0.5 and k=0.25

notka56 [123]

Answer:

6.5

Step-by-step explanation:

$7j + 5 - 8k \\ = 7 \times 0.5 + 5 - 8 \times 0.25 \\ = 3.5 + 5 - 2.00 \\ = 8.5 - 2 \\ = 6.5 \\$

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4 years ago

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