Subtraction is a mathematical operation that reflects the removal of things from a collection. The ribbon that Millie already had is 7.1 feet.
<h3>What is subtraction?</h3>
Subtraction is a mathematical operation that reflects the removal of things from a collection. The negative symbol represents subtraction.
Given Millie needs a total of 7.8 feet of ribbon for a school project. Also, She needs 0.7 more feet of ribbon. Therefore, the ribbon that Millie needs is,
Ribbon Millie had = Total Ribbon - ribbon that is needed
= 7.8 feet - 0.7feet
= 7.1 feet
Hence, the ribbon that Millie already had is 7.1 feet.
Learn more about Subtraction:
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<span>Step 1 </span><span> :</span><span> (3 • (y2)) • 22y5
</span><span>
step 2 :</span><span> 3y2 • 22y5
</span><span>Step 3 :</span>Multiplying exponential expressions
:3.1 y2 multiplied by y5 = y(2 + 5) = y7
Final result : (3•22y7<span>)
</span>hope it helps
Look at my picture for the work, but here are the steps to solve this question:
1. Use the slope formula to find the slope
2. Use the point slope formula and solve for y
Final answer: y=-x+2
Please let me know if this answer helped you!
Answer:
a) Given that w=81 and k = 0.375 then r = 6
b) Given that s=27 and k = 224 then w=32
Step-by-step explanation:
<u><em>Step(i):-</em></u>
Given that W varies directly as r³
<em> ⇒ w∝r³</em>
<em> ⇒ w = kr³</em>
where 'k' is proportionally constant
given that w= 24 and r =4
⇒ 24 = k (4)³
⇒ k = 
⇒<em> k = 0.375</em>
<u><em>Step(ii):-</em></u>
Given that W varies indirectly as 's'
w ∝
<em> W =k </em><em></em>
where 'k' is proportionally constant
28 = k (
)
<em> k = 28 × 8 = 224</em>
<u><em>Step(iii):-</em></u>
a) Given that w=81 and k = 0.375
w = kr³
81 = 0.375 (r)³
r³ = 216
r = ∛216 =6
<em> r =6</em>
b)
Given that s=27 and k = 224
W =k
w = 224 (
)
<em> w = 32</em>
