Answer: 75%
Step-by-step explanation:
The test had 32 questions and from these 32 you were able to get 24 questions right.
The percentage of questions you got right is the percentage of 32 that 24 is.
= Number of correct questions / Total number of questions * 100%
= 24 / 32 * 100%
= 75%
15 postcards, 10
envelopes, and a notepad cost------------------- 1.68 dolars
Postcards------------x
Envelopes------------y
Notepad--------------z
15x+10y+z=1.68
<span>Y=z/8 y=0.02+x</span>
<span>Z=8y x=y-0.02</span>
15(y-0.02)+10y+8y=1.68
15y-0.30+18y=1.68
<span>33y=1.98 y=0.06</span>
Z=8*0.06=0.48
X=0.06-0.02=0.04
Costs
Postcards------------0.04
dolars/ 4 cents
Envelopes------------0.06
dolars/ 6 cents
<span>Notepad--------------0.48
dolars/ 48 cents</span>
9514 1404 393
Answer:
- GX = 122°
- XU = 148°
- UG = 90°
Step-by-step explanation:
Each arc has the same measure as its central angle. The sum of all of them is 360°.
angle UOG is marked as a 90° angle, so arc UG is 90°.
angle GOX is marked as 122°, so arc GX is 122°.
angle XOU fills out the rest of 360°, so its measure is 360° -90° -122° = 148°. That means are XU is 148°.
The arc measures are ...
- GX = 122°
- XU = 148°
- UG = 90°
Answer:
y = 10-2x
Step-by-step explanation:
2x+y=10
y=10-2x
