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2 years ago

Help please.

Mathematics

1 answer:

stiks02 [169]2 years ago

3 0

Answer:

Q2. Original 100%

New Selling price=100% - 25% = 75% of original

Sale price of bracelet= 75/100 × 44 = $33

Q3. 100%- 25%= 75%

Cost of table= 75/100 × 425= $318.75

Alternatively,

Discount= 25/100 × 425 = $106.25

Cost of table= $425- $106.25= $318.75

Q4. 10 cans ---- $4

1 can= 4÷10 = $0.40

15 cans= $0.40 ×15 = $6

Q5. Total number of children= 35+5= 40

Total people= 10+40 = 50

Thus, the ratio is 40:50= 4:5 (<em>divide by 10</em>)

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Solution:

Given function $h(t)=-16t^2+15t+6.5$

To find the value of h(t) when $t=\frac{15}{32}$ :

$h(t)=-16t^2+15t+6.5$

Substitute $t=\frac{15}{32}$ in the given function.

$$h\left(\frac{15}{32} \right)=-16\left(\frac{15}{32} \right)^2+15\left(\frac{15}{32} \right)+6.5$

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$$=-\left(\frac{225}{64} \right)+\left(\frac{225}{32} \right)+6.5$

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LCM of 64 and 32 = 64

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Hence the value of h(t) when $t=\frac{15}{32}$ is 10.02.

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