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12 questions math Grades 7-8

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  1. Convert Exercise 1273: a floral arbor 7 feet tall to inches. What is the result?

    • 84 inches
    • 170 inches
    • 94 inches
    • 64 inches
    Reveal answer

    Answer: 84 inches

    Source evidence

    PDF page 1259: 1255. 0 1257. undefined 1259. 39 1261. 57 1263. 8 1265. 7x + 63 1267. −18m + 3 1269. 5n − 2 1271. −5a − 13 1273. 84 inches 1275. 64 inches 1277. 2.7 miles 1279. 105 minutes 1281. 94 ounces 1283. 10 lbs. 6 oz. 1285. 15 feet 1287. 170 centimeters 1289. 0.488 grams 1291. 2,900 grams 1293. 1.12 meter 1295. 0.9 kilograms 1297. 175.3 centimeters 1299. 1.6 miles 1301. 14.6 gallons 1303. 35° C 1305. –6.7° C 1307. 86° F 1309. 10.4° F

  2. According to answer 1275, a picture frame width converts to how many inches?

    • 94 inches
    • 105 inches
    • 84 inches
    • 64 inches
    Reveal answer

    Answer: 64 inches

    Source evidence

    PDF page 1259: 1255. 0 1257. undefined 1259. 39 1261. 57 1263. 8 1265. 7x + 63 1267. −18m + 3 1269. 5n − 2 1271. −5a − 13 1273. 84 inches 1275. 64 inches 1277. 2.7 miles 1279. 105 minutes 1281. 94 ounces 1283. 10 lbs. 6 oz. 1285. 15 feet 1287. 170 centimeters 1289. 0.488 grams 1291. 2,900 grams 1293. 1.12 meter 1295. 0.9 kilograms 1297. 175.3 centimeters 1299. 1.6 miles 1301. 14.6 gallons 1303. 35° C 1305. –6.7° C 1307. 86° F 1309. 10.4° F

  3. According to answer 1287, Donna's height of 1.7 meters converts to:

    • 175.3 centimeters
    • 190.5 centimeters
    • 155 centimeters
    • 170 centimeters
    Reveal answer

    Answer: 170 centimeters

    Source evidence

    PDF page 1259: 1255. 0 1257. undefined 1259. 39 1261. 57 1263. 8 1265. 7x + 63 1267. −18m + 3 1269. 5n − 2 1271. −5a − 13 1273. 84 inches 1275. 64 inches 1277. 2.7 miles 1279. 105 minutes 1281. 94 ounces 1283. 10 lbs. 6 oz. 1285. 15 feet 1287. 170 centimeters 1289. 0.488 grams 1291. 2,900 grams 1293. 1.12 meter 1295. 0.9 kilograms 1297. 175.3 centimeters 1299. 1.6 miles 1301. 14.6 gallons 1303. 35° C 1305. –6.7° C 1307. 86° F 1309. 10.4° F

  4. According to answer 1303, a Fahrenheit temperature converts to what Celsius value?

    • –6.7° C
    • 15° C
    • 35° C
    • 10.4° C
    Reveal answer

    Answer: 35° C

    Source evidence

    PDF page 1259: 1255. 0 1257. undefined 1259. 39 1261. 57 1263. 8 1265. 7x + 63 1267. −18m + 3 1269. 5n − 2 1271. −5a − 13 1273. 84 inches 1275. 64 inches 1277. 2.7 miles 1279. 105 minutes 1281. 94 ounces 1283. 10 lbs. 6 oz. 1285. 15 feet 1287. 170 centimeters 1289. 0.488 grams 1291. 2,900 grams 1293. 1.12 meter 1295. 0.9 kilograms 1297. 175.3 centimeters 1299. 1.6 miles 1301. 14.6 gallons 1303. 35° C 1305. –6.7° C 1307. 86° F 1309. 10.4° F

  5. According to answer 255, the two elevation values given are:

    • 20,320 feet and −282 feet
    • 19,335.6 feet and 0
    • 8,850 m and 282 m
    • 540 million and −27
    Reveal answer

    Answer: 20,320 feet and −282 feet

    Source evidence

    PDF page 1253: 255. a 20,320 feet b −282 feet

  6. According to answer 559, rounding a decimal gives which three values?

    • a 5.79 b 5.8 c 6
    • a 5.78 b 5.8 c 6
    • a 63.48 b 63.5 c 63
    • a 12.48 b 12.5 c 12
    Reveal answer

    Answer: a 63.48 b 63.5 c 63

    Source evidence

    PDF page 1255: 559. a 63.48 b 63.5 c 63

  7. According to answer 1157, rounding a decimal produces which values?

    • a 5.79 b 5.8 c 6
    • a 12.48 b 12.5 c 12
    • a 6.58 b 6.6 c 7
    • a 63.48 b 63.5 c 63
    Reveal answer

    Answer: a 5.79 b 5.8 c 6

    Source evidence

    PDF page 1258: 1157. a 5.79 b 5.8 c 6

  8. Exercise 37 describes a number as divisible by which numbers?

    • divisible by 3 and 5
    • divisible by 2, 3, and 6
    • divisible by 2, 5, and 10
    • divisible by 2, 3, 5, 6, and 10
    Reveal answer

    Answer: divisible by 2, 3, and 6

    Source evidence

    PDF page 1252: 37. divisible by 2, 3, and 6

  9. According to answer 41, the number is divisible by which set?

    • divisible by 2, 5, and 10
    • divisible by 2, 3, 5, 6, and 10
    • divisible by 2, 3, and 6
    • divisible by 3 and 5
    Reveal answer

    Answer: divisible by 2, 3, 5, 6, and 10

    Source evidence

    PDF page 1252: 41. divisible by 2, 3, 5, 6, and 10

  10. According to answer 45, a number is divisible by which numbers?

    • divisible by 2, 3, and 6
    • divisible by 2, 5, and 10
    • divisible by 3 and 5
    • divisible by 2, 3, 5, 6, and 10
    Reveal answer

    Answer: divisible by 2, 5, and 10

    Source evidence

    PDF page 1252: 45. divisible by 2, 5, and 10

  11. According to answer 55, the prime factorization is:

    • 2 · 2 · 2 · 2 · 3 · 3 · 3
    • 2 · 2 · 3 · 3 · 7
    • 2 · 2 · 2 · 3 · 3
    • 2 · 2 · 3 · 5 · 7
    Reveal answer

    Answer: 2 · 2 · 2 · 2 · 3 · 3 · 3

    Source evidence

    PDF page 1252: 55. 2 · 2 · 2 · 2 · 3 · 3 · 3

  12. According to answer 943, the prime factorization is:

    • 2 · 2 · 2 · 2 · 3 · 3 · 3
    • 2 · 2 · 3 · 3 · 7
    • 2 · 2 · 2 · 3 · 5 · 13
    • 2 · 2 · 3 · 5 · 7
    Reveal answer

    Answer: 2 · 2 · 3 · 3 · 7

    Source evidence

    PDF page 1257: 943. 2 · 2 · 3 · 3 · 7

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Source

Elementary Algebra 2e

Elementary Algebra 2e by OpenStax, used under CC BY 4.0. Changes made by Stratacademy.

Original textbook · CC BY 4.0

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