All categories

3 years ago

i graded 20% more papers this week than I did last week. If I graded 230 paper last week, how many papers did I grade this week?

Mathematics

2 answers:

defon3 years ago

7 0

Answer:

Step-by-step explanation:

20 100

? 230

Step:2

230*20 divided by 100= 46

Step:3 46+230=276

Answer:276

sdas [7]3 years ago

6 0

Answer:

276 papers

Step-by-step explanation:

Make 230 into 10%=23. Multiply 23 by 2 to get 20%. Add that sum (46) to 230, to get how many more papers you graded this week=276.

You might be interested in

11. A dog is 9.5 meters from the base of a tree. It looks up at an angle of 40° and spots

ASHA 777 [7]

Answer: 10.0 I'm sure

4 0

3 years ago

−k−(−8k) Combining like terms im confused!

melisa1 [442]

-k-(-8k)

= -k + 8k (two negatives equal one positive)

= 8k-k (flip it around because of the commutative property)

=7k (basic subtraction)

I really hope that helped :)

5 0

3 years ago

Read 2 more answers

338.08=8(0.07m+28.90+.30(28.90)

AlladinOne [14]

Answer:

m= - 396.253089

Step-by-step explanation:

hope this helps

5 0

2 years ago

What is 316+178*2427(2639+26383)-373637/282637

dybincka [34]

Answer:

12537678446.7

Step-by-step explanation:

316+178 divided by 2427 (2639 plus 26383) - 373637/282637

5 0

3 years ago

Find the area of quadrilateral ABCD. A. 27.28 units² B. 33.08 units² C. 28.53 units² D. 26.47 units²

Ludmilka [50]

Answer:

<h3> $\boxed{ \boxed{ \bold{ \purple{ \sf{28.53 \: {units}^{2} }}}}}$ </h3>

Option C is the correct option.

Step-by-step explanation:

For ABD

$\sf{ = \frac{2.89 + 8.59 + 8.6}{2} }$

$\sf{ = \frac{20.08}{2} }$

$\sf{ = 10.04}$

∆ ABD = $\sf{ = \sqrt{10.04(10.04 - 2.89)(10.04 - 8.59)(10.04 - 8.6)} }$

$\sf{ = \sqrt{10.04 \times 7.15 \times 1.45 \times 1.44 }}$

$\sf{ = \sqrt{149.8891} }$

$\sf{ = 12.2429}$

For ∆ ACD ,

$\sf{s = \frac{8.6 + 4.3 + 7.58}{2} }$

$\sf{ = \frac{20.48}{2} }$

$\sf{ = 10.24}$

∆ ACD = $\sf{ = \sqrt{10.24(10.24 - 8.6)(10.24 - 4.3)(10.24 - 7.58} }$

$\sf{ \sqrt{10.24 \times 1.64 \times 5.94 \times 2.66} }$

$\sf{ = \sqrt{265.3456} }$

$\sf{ = 16.2894}$

Area of quadrilateral ABCD = $\sf{12.2429 + 16.2894}$

$\sf{ = 28.5323}$

$\sf{ = 28.53}$ units ²

Hope I helped!

Best regards!

8 0

3 years ago