1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
denpristay [2]
3 years ago
6

Please help me with questions 8-13 I need help this is for a grade

Mathematics
1 answer:
sergiy2304 [10]3 years ago
6 0
For triangles, area is 1/2 base times height
8. Base 15 1/4 and height 18. Base and height can be flipped around to make the math easier, so 1/2(18)(15 1/4) = 9(15 1/4) = 9(61/4) = 549/4= 137 1/4 sq inches

9. Base 13 and height 11. Area = (1/2)(13)(11)= (13/2)(11) = 143/2 = 71 1/2 sq inches

10. Same thing again. Base = 30, height = 20, so area = (1/2)(30)(20) = 15(20) = 300 square km.

11. Base = 8, height = 5, so (1/2)(8)(5)= 4(5)= 20 square feet.

12. Base = 5, height = 3, so area = (1/2)(5)(3)= (5/2)(3)= 15/2; for 200 tiles we would take (15/2)(200)= 15(100) = 1500 square cm

13. Monica forgot to multiply base and height by 1/2.
You might be interested in
The angles of elevation to an airplane from two points A and B on level ground are 58° and 76°, respectively. The points A and B
statuscvo [17]

Answer:

90

Step-by-step explanation:

45x2=90

6 0
3 years ago
What is 250% turned in to a fraction or mixednumber
mixas84 [53]
It would be 250/1000  or 1/4


please can i have a brainliest
7 0
3 years ago
Read 2 more answers
How are the ratios 3:6 and 9:18 related?
Viktor [21]

Answer:

three times 3 is nine and six times three is eighteen, 3:6 is simplified.

8 0
3 years ago
Read 2 more answers
Adrián compró una bicicleta cuyo precio original es de 400.00 pesos pero al pagar en la caja le hicieron 20% de descuento cuánto
Georgia [21]

Answer:

320 pesos

Step-by-step explanation:

Un 20% de descuento en formato decimal es 0.20. La totalidad de la bicicleta es representada como 100% o 1 y nosotros queremos saber el precio despues del descuento que seria

100% - 20% = 80% o 0.80

Ahora simplemente multiplicamos este decimal por el valor original de la bicicleta para saber el precio descontado...

400 * 0.80 = 320 pesos

8 0
3 years ago
HELP! I don't understand so please give a detailed explanation.
likoan [24]

From the picture, we can see that ΔLSP and ΔLRN are similar, so corresponding sides are proportionate:


LN : LP = 28:12 = 7:3


Therefore, the LRN sides is 7/3 of the corresponding side of LSP.


Then, it states that the area of LSP = 50, and area of a triangle is (1/2)bh, so we set up the equation


Area of LSP = (1/2)bh = 50 ← Remember how the corresponding sides are 7/3 of LSP? Therefore, the area of LRN:


LRN = (1/2)(7b/3)(7h/3) ← Take out the 7/3 and multiply them together

= (49/9)(1/2)bh ← From LSP, we know that (1/2)bh = 50, so plug that in

= (49/9)*50 ≈ 272.222 units ²

6 0
3 years ago
Other questions:
  • With two reapers operating, a field can be harvested in 1 h. If only the newer reaper is used, the crop can be harvested in 1.2
    9·1 answer
  • Is fl oz bigger or less than pt
    6·1 answer
  • Which variable is likely to be linked to both of the variables mentioned in this statement?
    11·1 answer
  • Please answer this correctly
    9·1 answer
  • What is the area of a right triangle 21 centimeters wide and 13 centimeters tall?
    12·2 answers
  • All the point in the picture are the same line
    10·1 answer
  • Marita always listen to her favourite radio station when she drives her car
    6·1 answer
  • Find the composition of transformations that map ABCD to EHGF. Reflect over the -axis, then translate (x+ ,y+)
    9·2 answers
  • 1. 2/4 x 2/9<br> 2. 3/4 x 4/9<br> 3. 2/5 x 5/8
    6·1 answer
  • The we are readers book club allows members to buy book for $8.75 per book.The print is dead book club cost $20 to join and allo
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!